90311033012 has 24 divisors (see below), whose sum is σ = 159903233280. Its totient is φ = 44624923200.

The previous prime is 90311032993. The next prime is 90311033017. The reversal of 90311033012 is 21033011309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90311033017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629543 + ... + 759569.

It is an arithmetic number, because the mean of its divisors is an integer number (6662634720).

Almost surely, 2^90311033012 is an apocalyptic number.

It is an amenable number.

90311033012 is a deficient number, since it is larger than the sum of its proper divisors (69592200268).

90311033012 is a wasteful number, since it uses less digits than its factorization.

90311033012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132071 (or 132069 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 23.

The spelling of 90311033012 in words is "ninety billion, three hundred eleven million, thirty-three thousand, twelve".