90130311 has 24 divisors (see below), whose sum is σ = 139804704. Its totient is φ = 55749120.

The previous prime is 90130309. The next prime is 90130321. The reversal of 90130311 is 11303109.

It is not a de Polignac number, because 90130311 - 2¹ = 90130309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90130301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6715 + ... + 15011.

It is an arithmetic number, because the mean of its divisors is an integer number (5825196).

Almost surely, 2^90130311 is an apocalyptic number.

90130311 is a deficient number, since it is larger than the sum of its proper divisors (49674393).

90130311 is a wasteful number, since it uses less digits than its factorization.

90130311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8391 (or 8388 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 90130311 is about 9493.6984889978. The cubic root of 90130311 is about 448.3566578831.

The spelling of 90130311 in words is "ninety million, one hundred thirty thousand, three hundred eleven".