91424200331 has 4 divisors (see below), whose sum is σ = 91440413064. Its totient is φ = 91407987600.

The previous prime is 91424200319. The next prime is 91424200369. The reversal of 91424200331 is 13300242419.

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

It is a cyclic number.

It is not a de Polignac number, because 91424200331 - 2¹⁴ = 91424183947 is a prime.

It is a super-2 number, since 2×91424200331² (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 = 91424200294 and 91424200303.

It is not an unprimeable number, because it can be changed into a prime (91424200631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8097905 + ... + 8109186.

It is an arithmetic number, because the mean of its divisors is an integer number (22860103266).

Almost surely, 2^91424200331 is an apocalyptic number.

91424200331 is a deficient number, since it is larger than the sum of its proper divisors (16212733).

91424200331 is a wasteful number, since it uses less digits than its factorization.

91424200331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16212732.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 91424200331 in words is "ninety-one billion, four hundred twenty-four million, two hundred thousand, three hundred thirty-one".