13121876040 has 128 divisors (see below), whose sum is σ = 48450044160. Its totient is φ = 2768569344.

The previous prime is 13121876039. The next prime is 13121876057. The reversal of 13121876040 is 4067812131.

It is a junction number, because it is equal to n+sod(n) for n = 13121875992 and 13121876010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 589899 + ... + 611738.

It is an arithmetic number, because the mean of its divisors is an integer number (378515970).

Almost surely, 2^13121876040 is an apocalyptic number.

13121876040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13121876040 is an abundant number, since it is smaller than the sum of its proper divisors (35328168120).

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

13121876040 is a wasteful number, since it uses less digits than its factorization.

13121876040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201671 (or 1201667 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 13121876040 in words is "thirteen billion, one hundred twenty-one million, eight hundred seventy-six thousand, forty".