11878980231 has 16 divisors (see below), whose sum is σ = 16830026208. Its totient is φ = 7426944000.

The previous prime is 11878980229. The next prime is 11878980287. The reversal of 11878980231 is 13208987811.

It is a happy number.

It is not a de Polignac number, because 11878980231 - 2¹ = 11878980229 is a prime.

It is a super-2 number, since 2×11878980231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11878980221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400120 + ... + 428781.

It is an arithmetic number, because the mean of its divisors is an integer number (1051876638).

Almost surely, 2^11878980231 is an apocalyptic number.

11878980231 is a deficient number, since it is larger than the sum of its proper divisors (4951045977).

11878980231 is a wasteful number, since it uses less digits than its factorization.

11878980231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829202.

The product of its (nonzero) digits is 193536, while the sum is 48.

The spelling of 11878980231 in words is "eleven billion, eight hundred seventy-eight million, nine hundred eighty thousand, two hundred thirty-one".