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11030031102100 = 2252135841811981
BaseRepresentation
bin1010000010000010000100…
…0101011111000010010100
31110001110102211110201202011
42200200201011133002110
52421204000430231400
635243043142154004
72215615311301003
oct240404105370224
943043384421664
1011030031102100
1135728a000645a
1212a183b122904
1362018708895a
142a1bdbb98c3a
15141db2dc88ba
hexa082115f094

11030031102100 has 36 divisors (see below), whose sum is σ = 23935373169148. Its totient is φ = 4411974528000.

The previous prime is 11030031102089. The next prime is 11030031102107. The reversal of 11030031102100 is 120113003011.

It can be written as a sum of positive squares in 6 ways, for example, as 786779644036 + 10243251458064 = 887006^2 + 3200508^2 .

It is a super-2 number, since 2×110300311021002 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11030031102107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13178110 + ... + 13990090.

Almost surely, 211030031102100 is an apocalyptic number.

11030031102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11030031102100 is an abundant number, since it is smaller than the sum of its proper divisors (12905342067048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11030031102100 is a wasteful number, since it uses less digits than its factorization.

11030031102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947836 (or 947829 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11030031102100 its reverse (120113003011), we get a palindrome (11150144105111).

The spelling of 11030031102100 in words is "eleven trillion, thirty billion, thirty-one million, one hundred two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 135841 271682 543364 679205 811981 1358410 1623962 2716820 3247924 3396025 4059905 6792050 8119810 13584100 16239620 20299525 40599050 81198100 110300311021 220600622042 441201244084 551501555105 1103003110210 2206006220420 2757507775525 5515015551050 11030031102100