170023233131 has 4 divisors (see below), whose sum is σ = 170155754472. Its totient is φ = 169890711792.

The previous prime is 170023233119. The next prime is 170023233139. The reversal of 170023233131 is 131332320071.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170023233131 is a prime.

It is a super-2 number, since 2×170023233131² (a number of 23 digits) contains 22 as substring.

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 170023233131.

It is not an unprimeable number, because it can be changed into a prime (170023233139) 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, 66258746 + ... + 66261311.

It is an arithmetic number, because the mean of its divisors is an integer number (42538938618).

Almost surely, 2^170023233131 is an apocalyptic number.

170023233131 is a deficient number, since it is larger than the sum of its proper divisors (132521341).

170023233131 is a wasteful number, since it uses less digits than its factorization.

170023233131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132521340.

The product of its (nonzero) digits is 2268, while the sum is 26.

The spelling of 170023233131 in words is "one hundred seventy billion, twenty-three million, two hundred thirty-three thousand, one hundred thirty-one".