90123030918771 has 16 divisors (see below), whose sum is σ = 120181395440640. Its totient is φ = 60073344031680.

The previous prime is 90123030918607. The next prime is 90123030918799. The reversal of 90123030918771 is 17781903032109.

It is not a de Polignac number, because 90123030918771 - 2³⁰ = 90121957176947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90123030913771) 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, 1063745350 + ... + 1063830068.

It is an arithmetic number, because the mean of its divisors is an integer number (7511337215040).

Almost surely, 2^{90123030918771} is an apocalyptic number.

90123030918771 is a deficient number, since it is larger than the sum of its proper divisors (30058364521869).

90123030918771 is a wasteful number, since it uses less digits than its factorization.

90123030918771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131746.

The product of its (nonzero) digits is 571536, while the sum is 51.

The spelling of 90123030918771 in words is "ninety trillion, one hundred twenty-three billion, thirty million, nine hundred eighteen thousand, seven hundred seventy-one".