91323341306413 has 4 divisors (see below), whose sum is σ = 91323360517408. Its totient is φ = 91323322095420.

The previous prime is 91323341306401. The next prime is 91323341306447. The reversal of 91323341306413 is 31460314332319.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91323341306413 - 2²¹ = 91323339209261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91323341306413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91323341306713) 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, 3346720 + ... + 13922902.

It is an arithmetic number, because the mean of its divisors is an integer number (22830840129352).

Almost surely, 2^{91323341306413} is an apocalyptic number.

It is an amenable number.

91323341306413 is a deficient number, since it is larger than the sum of its proper divisors (19210995).

91323341306413 is a wasteful number, since it uses less digits than its factorization.

91323341306413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19210994.

The product of its (nonzero) digits is 419904, while the sum is 43.

The spelling of 91323341306413 in words is "ninety-one trillion, three hundred twenty-three billion, three hundred forty-one million, three hundred six thousand, four hundred thirteen".