13213110078 has 48 divisors (see below), whose sum is σ = 32760745056. Its totient is φ = 3770262720.

The previous prime is 13213110077. The next prime is 13213110149. The reversal of 13213110078 is 87001131231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213110077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29568 + ... + 165228.

It is an arithmetic number, because the mean of its divisors is an integer number (682515522).

Almost surely, 2^13213110078 is an apocalyptic number.

13213110078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13213110078 is an abundant number, since it is smaller than the sum of its proper divisors (19547634978).

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

13213110078 is a wasteful number, since it uses less digits than its factorization.

13213110078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136449 (or 136446 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The spelling of 13213110078 in words is "thirteen billion, two hundred thirteen million, one hundred ten thousand, seventy-eight".