13131010021012 has 18 divisors (see below), whose sum is σ = 24882875499678. Its totient is φ = 6060466163232.

The previous prime is 13131010020943. The next prime is 13131010021037. The reversal of 13131010021012 is 21012001013131.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 178180228996 + 12952829792016 = 422114^2 + 3599004^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9712284843 + ... + 9712286194.

Almost surely, 2^{13131010021012} is an apocalyptic number.

It is an amenable number.

13131010021012 is a deficient number, since it is larger than the sum of its proper divisors (11751865478666).

13131010021012 is a wasteful number, since it uses less digits than its factorization.

13131010021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19424571067 (or 19424571052 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 13131010021012 its reverse (21012001013131), we get a palindrome (34143011034143).

The spelling of 13131010021012 in words is "thirteen trillion, one hundred thirty-one billion, ten million, twenty-one thousand, twelve".