13121131013012 has 48 divisors (see below), whose sum is σ = 25481376325440. Its totient is φ = 5861365113600.

The previous prime is 13121131012963. The next prime is 13121131013059. The reversal of 13121131013012 is 21031013112131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8254568 + ... + 9714944.

It is an arithmetic number, because the mean of its divisors is an integer number (530862006780).

Almost surely, 2^{13121131013012} is an apocalyptic number.

It is an amenable number.

13121131013012 is a deficient number, since it is larger than the sum of its proper divisors (12360245312428).

13121131013012 is a wasteful number, since it uses less digits than its factorization.

13121131013012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463912 (or 1463910 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 13121131013012 its reverse (21031013112131), we get a palindrome (34152144125143).

The spelling of 13121131013012 in words is "thirteen trillion, one hundred twenty-one billion, one hundred thirty-one million, thirteen thousand, twelve".