972947311231 has 8 divisors (see below), whose sum is σ = 1112010567840. Its totient is φ = 833901750528.

The previous prime is 972947311223. The next prime is 972947311291. The reversal of 972947311231 is 132113749279.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 972947311231 - 2³ = 972947311223 is a prime.

It is a super-2 number, since 2×972947311231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972947311291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4305946 + ... + 4526263.

It is an arithmetic number, because the mean of its divisors is an integer number (139001320980).

Almost surely, 2^972947311231 is an apocalyptic number.

972947311231 is a deficient number, since it is larger than the sum of its proper divisors (139063256609).

972947311231 is a wasteful number, since it uses less digits than its factorization.

972947311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8847953.

The product of its digits is 571536, while the sum is 49.

The spelling of 972947311231 in words is "nine hundred seventy-two billion, nine hundred forty-seven million, three hundred eleven thousand, two hundred thirty-one".