913322129081 has 4 divisors (see below), whose sum is σ = 913325488500. Its totient is φ = 913318769664.

The previous prime is 913322129017. The next prime is 913322129107. The reversal of 913322129081 is 180921223319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 180921223319 = 1409 ⋅128403991.

It can be written as a sum of positive squares in 2 ways, for example, as 544915617856 + 368406511225 = 738184^2 + 606965^2 .

It is a cyclic number.

It is not a de Polignac number, because 913322129081 - 2⁶ = 913322129017 is a prime.

It is a super-2 number, since 2×913322129081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (913322129011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1232156 + ... + 1828893.

It is an arithmetic number, because the mean of its divisors is an integer number (228331372125).

Almost surely, 2^913322129081 is an apocalyptic number.

It is an amenable number.

913322129081 is a deficient number, since it is larger than the sum of its proper divisors (3359419).

913322129081 is a wasteful number, since it uses less digits than its factorization.

913322129081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359418.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 913322129081 in words is "nine hundred thirteen billion, three hundred twenty-two million, one hundred twenty-nine thousand, eighty-one".