91001023101323 has 8 divisors (see below), whose sum is σ = 91156110804000. Its totient is φ = 90845940884608.

The previous prime is 91001023101229. The next prime is 91001023101379. The reversal of 91001023101323 is 32310132010019.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91001023101323 - 2²⁰ = 91001022052747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91001023101292 and 91001023101301.

It is not an unprimeable number, because it can be changed into a prime (91001023151323) 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, 32546738 + ... + 35231976.

It is an arithmetic number, because the mean of its divisors is an integer number (11394513850500).

Almost surely, 2^{91001023101323} is an apocalyptic number.

91001023101323 is a deficient number, since it is larger than the sum of its proper divisors (155087702677).

91001023101323 is a wasteful number, since it uses less digits than its factorization.

91001023101323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742981.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 91001023101323 in words is "ninety-one trillion, one billion, twenty-three million, one hundred one thousand, three hundred twenty-three".