90133303331 has 4 divisors (see below), whose sum is σ = 90139582632. Its totient is φ = 90127024032.

The previous prime is 90133303307. The next prime is 90133303363. The reversal of 90133303331 is 13330333109.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90133303331 is a prime.

It is a super-2 number, since 2×90133303331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90133303294 and 90133303303.

It is not an unprimeable number, because it can be changed into a prime (90133303531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3118070 + ... + 3146843.

It is an arithmetic number, because the mean of its divisors is an integer number (22534895658).

Almost surely, 2^90133303331 is an apocalyptic number.

90133303331 is a deficient number, since it is larger than the sum of its proper divisors (6279301).

90133303331 is a wasteful number, since it uses less digits than its factorization.

90133303331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6279300.

The product of its (nonzero) digits is 6561, while the sum is 29.

The spelling of 90133303331 in words is "ninety billion, one hundred thirty-three million, three hundred three thousand, three hundred thirty-one".