172303230347 has 4 divisors (see below), whose sum is σ = 172304777856. Its totient is φ = 172301682840.

The previous prime is 172303230343. The next prime is 172303230401. The reversal of 172303230347 is 743032303271.

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 172303230347 - 2² = 172303230343 is a prime.

It is a super-2 number, since 2×172303230347² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172303230343) 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, 592604 + ... + 834137.

It is an arithmetic number, because the mean of its divisors is an integer number (43076194464).

Almost surely, 2^172303230347 is an apocalyptic number.

172303230347 is a deficient number, since it is larger than the sum of its proper divisors (1547509).

172303230347 is a wasteful number, since it uses less digits than its factorization.

172303230347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547508.

The product of its (nonzero) digits is 63504, while the sum is 35.

The spelling of 172303230347 in words is "one hundred seventy-two billion, three hundred three million, two hundred thirty thousand, three hundred forty-seven".