13123157082 has 128 divisors (see below), whose sum is σ = 33462374400. Its totient is φ = 3345753600.

The previous prime is 13123157059. The next prime is 13123157137. The reversal of 13123157082 is 28075132131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 941907 + ... + 955737.

It is an arithmetic number, because the mean of its divisors is an integer number (261424800).

Almost surely, 2^13123157082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13123157082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16731187200).

13123157082 is an abundant number, since it is smaller than the sum of its proper divisors (20339217318).

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

13123157082 is a wasteful number, since it uses less digits than its factorization.

13123157082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13932.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 13123157082 in words is "thirteen billion, one hundred twenty-three million, one hundred fifty-seven thousand, eighty-two".