131000104019978 has 8 divisors (see below), whose sum is σ = 199432994179872. Its totient is φ = 64522439293356.

The previous prime is 131000104019951. The next prime is 131000104020043. The reversal of 131000104019978 is 879910401000131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×131000104019978² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488806358150 + ... + 488806358417.

It is an arithmetic number, because the mean of its divisors is an integer number (24929124272484).

Almost surely, 2^{131000104019978} is an apocalyptic number.

131000104019978 is a deficient number, since it is larger than the sum of its proper divisors (68432890159894).

131000104019978 is an equidigital number, since it uses as much as digits as its factorization.

131000104019978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977612716636.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 131000104019978 in words is "one hundred thirty-one trillion, one hundred four million, nineteen thousand, nine hundred seventy-eight".