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10202111231213 = 112236535613887
BaseRepresentation
bin1001010001110101110100…
…1101110100010011101101
31100010022102200011121002102
42110131131031310103231
52314122410433344323
633410441334104445
72102035553433326
oct224353515642355
940108380147072
1010202111231213
113283766904500
1211892a24ab125
13590093998625
14273adb78144d
1512a5a88ec328
hex9475d3744ed

10202111231213 has 24 divisors (see below), whose sum is σ = 11719372944384. Its totient is φ = 8857813886240.

The previous prime is 10202111231197. The next prime is 10202111231219. The reversal of 10202111231213 is 31213211120201.

It is not a de Polignac number, because 10202111231213 - 24 = 10202111231197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202111231219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 989645 + ... + 4624242.

It is an arithmetic number, because the mean of its divisors is an integer number (488307206016).

Almost surely, 210202111231213 is an apocalyptic number.

It is an amenable number.

10202111231213 is a deficient number, since it is larger than the sum of its proper divisors (1517261713171).

10202111231213 is a wasteful number, since it uses less digits than its factorization.

10202111231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5614585 (or 5614574 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 10202111231213 its reverse (31213211120201), we get a palindrome (41415322351414).

The spelling of 10202111231213 in words is "ten trillion, two hundred two billion, one hundred eleven million, two hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 11 23 121 253 653 2783 7183 15019 79013 165209 1817299 5613887 61752757 129119401 679280327 1420313411 3665868211 15623447521 40324550321 84314968853 443570053531 927464657383 10202111231213