13031211012004 has 12 divisors (see below), whose sum is σ = 22805177768604. Its totient is φ = 6515445935264.

The previous prime is 13031211011971. The next prime is 13031211012137. The reversal of 13031211012004 is 40021011213031.

It can be written as a sum of positive squares in 2 ways, for example, as 12779538223104 + 251672788900 = 3574848^2 + 501670^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39708847 + ... + 40035670.

It is an arithmetic number, because the mean of its divisors is an integer number (1900431480717).

Almost surely, 2^{13031211012004} is an apocalyptic number.

It is an amenable number.

13031211012004 is a deficient number, since it is larger than the sum of its proper divisors (9773966756600).

13031211012004 is a wasteful number, since it uses less digits than its factorization.

13031211012004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79785374 (or 79785372 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 13031211012004 its reverse (40021011213031), we get a palindrome (53052222225035).

The spelling of 13031211012004 in words is "thirteen trillion, thirty-one billion, two hundred eleven million, twelve thousand, four".