10000172931 has 16 divisors (see below), whose sum is σ = 15349592064. Its totient is φ = 5672672064.

The previous prime is 10000172927. The next prime is 10000172947. The reversal of 10000172931 is 13927100001.

It is not a de Polignac number, because 10000172931 - 2² = 10000172927 is a prime.

It is a super-2 number, since 2×10000172931² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10000172951) 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, 1735075 + ... + 1740828.

It is an arithmetic number, because the mean of its divisors is an integer number (959349504).

Almost surely, 2^10000172931 is an apocalyptic number.

10000172931 is a deficient number, since it is larger than the sum of its proper divisors (5349419133).

10000172931 is a wasteful number, since it uses less digits than its factorization.

10000172931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476050.

The product of its (nonzero) digits is 378, while the sum is 24.

Adding to 10000172931 its reverse (13927100001), we get a palindrome (23927272932).

The spelling of 10000172931 in words is "ten billion, one hundred seventy-two thousand, nine hundred thirty-one".