91421300312 has 64 divisors (see below), whose sum is σ = 180591828480. Its totient is φ = 43303721472.

The previous prime is 91421300287. The next prime is 91421300323. The reversal of 91421300312 is 21300312419.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8690768 + ... + 8701280.

It is an arithmetic number, because the mean of its divisors is an integer number (2821747320).

Almost surely, 2^91421300312 is an apocalyptic number.

91421300312 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

91421300312 is a deficient number, since it is larger than the sum of its proper divisors (89170528168).

91421300312 is a wasteful number, since it uses less digits than its factorization.

91421300312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10992 (or 10988 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 91421300312 in words is "ninety-one billion, four hundred twenty-one million, three hundred thousand, three hundred twelve".