990260131042 has 64 divisors (see below), whose sum is σ = 1832925265920. Its totient is φ = 390733844544.

The previous prime is 990260131027. The next prime is 990260131067. The reversal of 990260131042 is 240131062099.

It is a junction number, because it is equal to n+sod(n) for n = 990260130992 and 990260131010.

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, 276375583 + ... + 276379165.

It is an arithmetic number, because the mean of its divisors is an integer number (28639457280).

Almost surely, 2^990260131042 is an apocalyptic number.

990260131042 is a deficient number, since it is larger than the sum of its proper divisors (842665134878).

990260131042 is a wasteful number, since it uses less digits than its factorization.

990260131042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7127.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 990260131042 in words is "nine hundred ninety billion, two hundred sixty million, one hundred thirty-one thousand, forty-two".