13111203012 has 48 divisors (see below), whose sum is σ = 32526914112. Its totient is φ = 4096235520.

The previous prime is 13111202987. The next prime is 13111203031. The reversal of 13111203012 is 21030211131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13111202982 and 13111203000.

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, 84178 + ... + 182505.

It is an arithmetic number, because the mean of its divisors is an integer number (677644044).

Almost surely, 2^13111203012 is an apocalyptic number.

13111203012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13111203012 is an abundant number, since it is smaller than the sum of its proper divisors (19415711100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13111203012 is a wasteful number, since it uses less digits than its factorization.

13111203012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266948 (or 266946 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13111203012 its reverse (21030211131), we get a palindrome (34141414143).

The spelling of 13111203012 in words is "thirteen billion, one hundred eleven million, two hundred three thousand, twelve".