172730052323 has 16 divisors (see below), whose sum is σ = 180158384736. Its totient is φ = 165459490560.

The previous prime is 172730052317. The next prime is 172730052377. The reversal of 172730052323 is 323250037271.

It is a cyclic number.

It is not a de Polignac number, because 172730052323 - 2⁴ = 172730052307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172730052023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5812583 + ... + 5842223.

It is an arithmetic number, because the mean of its divisors is an integer number (11259899046).

Almost surely, 2^172730052323 is an apocalyptic number.

172730052323 is a deficient number, since it is larger than the sum of its proper divisors (7428332413).

172730052323 is a wasteful number, since it uses less digits than its factorization.

172730052323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32294.

The product of its (nonzero) digits is 52920, while the sum is 35.

Adding to 172730052323 its reverse (323250037271), we get a palindrome (495980089594).

The spelling of 172730052323 in words is "one hundred seventy-two billion, seven hundred thirty million, fifty-two thousand, three hundred twenty-three".