91233129012481 has 16 divisors (see below), whose sum is σ = 96709292798400. Its totient is φ = 85769143502848.

The previous prime is 91233129012373. The next prime is 91233129012499. The reversal of 91233129012481 is 18421092133219.

It is a cyclic number.

It is not a de Polignac number, because 91233129012481 - 2²⁹ = 91232592141569 is a prime.

It is a super-2 number, since 2×91233129012481² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91233129012881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292630626 + ... + 292942228.

It is an arithmetic number, because the mean of its divisors is an integer number (6044330799900).

Almost surely, 2^{91233129012481} is an apocalyptic number.

It is an amenable number.

91233129012481 is a deficient number, since it is larger than the sum of its proper divisors (5476163785919).

91233129012481 is a wasteful number, since it uses less digits than its factorization.

91233129012481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331088.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 91233129012481 in words is "ninety-one trillion, two hundred thirty-three billion, one hundred twenty-nine million, twelve thousand, four hundred eighty-one".