90115235341231 has 32 divisors (see below), whose sum is σ = 97635156390720. Its totient is φ = 82863909789696.

The previous prime is 90115235341217. The next prime is 90115235341277. The reversal of 90115235341231 is 13214353251109.

It is not a de Polignac number, because 90115235341231 - 2²⁷ = 90115101123503 is a prime.

It is a super-2 number, since 2×90115235341231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90115235345231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2401965285 + ... + 2402002801.

It is an arithmetic number, because the mean of its divisors is an integer number (3051098637210).

Almost surely, 2^{90115235341231} is an apocalyptic number.

90115235341231 is a deficient number, since it is larger than the sum of its proper divisors (7519921049489).

90115235341231 is a wasteful number, since it uses less digits than its factorization.

90115235341231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55803.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 90115235341231 in words is "ninety trillion, one hundred fifteen billion, two hundred thirty-five million, three hundred forty-one thousand, two hundred thirty-one".