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31103032213001 = 73791147840433
BaseRepresentation
bin1110001001001101111010…
…01011111011111000001001
311002010102100210101220111002
413010212331023323320021
513034043002221304001
6150052311415344345
76360056063453000
oct704467513737011
9132112323356432
1031103032213001
119a017a3914601
1235a3b866820b5
13144800749a0a8
14797575443c37
1538e0dba8346b
hex1c49bd2fbe09

31103032213001 has 16 divisors (see below), whose sum is σ = 36730893888000. Its totient is φ = 26322276786624.

The previous prime is 31103032212971. The next prime is 31103032213003. The reversal of 31103032213001 is 10031223030113.

It is not a de Polignac number, because 31103032213001 - 238 = 30828154306057 is a prime.

It is a super-2 number, since 2×311030322130012 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31103032213003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573893120 + ... + 573947313.

It is an arithmetic number, because the mean of its divisors is an integer number (2295680868000).

Almost surely, 231103032213001 is an apocalyptic number.

It is an amenable number.

31103032213001 is a deficient number, since it is larger than the sum of its proper divisors (5627861674999).

31103032213001 is an equidigital number, since it uses as much as digits as its factorization.

31103032213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147840533 (or 1147840519 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31103032213001 its reverse (10031223030113), we get a palindrome (41134255243114).

The spelling of 31103032213001 in words is "thirty-one trillion, one hundred three billion, thirty-two million, two hundred thirteen thousand, one".

Divisors: 1 7 49 79 343 553 3871 27097 1147840433 8034883031 56244181217 90679394207 393709268519 634755759449 4443290316143 31103032213001