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10031213131 = 241383108677
BaseRepresentation
bin10010101011110100…
…00010101001001011
3221220002111102111021
421111322002221023
5131020442310011
64335215413311
7503403622222
oct112572025113
927802442437
1010031213131
1142883a3995
121b3b524237
13c3b2c8694
146b2369cb9
153da9c6471
hex255e82a4b

10031213131 has 8 divisors (see below), whose sum is σ = 10099229184. Its totient is φ = 9963415680.

The previous prime is 10031213057. The next prime is 10031213173. The reversal of 10031213131 is 13131213001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10031213131 - 29 = 10031212619 is a prime.

It is a super-2 number, since 2×100312131312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10031213531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37965 + ... + 146641.

It is an arithmetic number, because the mean of its divisors is an integer number (1262403648).

Almost surely, 210031213131 is an apocalyptic number.

10031213131 is a deficient number, since it is larger than the sum of its proper divisors (68016053).

10031213131 is a wasteful number, since it uses less digits than its factorization.

10031213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109301.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 10031213131 its reverse (13131213001), we get a palindrome (23162426132).

The spelling of 10031213131 in words is "ten billion, thirty-one million, two hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 241 383 92303 108677 26191157 41623291 10031213131