131311323232078 has 32 divisors (see below), whose sum is σ = 217090020843360. Its totient is φ = 59071156623360.

The previous prime is 131311323232073. The next prime is 131311323232079. The reversal of 131311323232078 is 870232323113131.

It is a self number, because there is not a number n which added to its sum of digits gives 131311323232078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131311323232073) 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, 476019400 + ... + 476295172.

It is an arithmetic number, because the mean of its divisors is an integer number (6784063151355).

Almost surely, 2^{131311323232078} is an apocalyptic number.

131311323232078 is a deficient number, since it is larger than the sum of its proper divisors (85778697611282).

131311323232078 is a wasteful number, since it uses less digits than its factorization.

131311323232078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499012.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 131311323232078 in words is "one hundred thirty-one trillion, three hundred eleven billion, three hundred twenty-three million, two hundred thirty-two thousand, seventy-eight".