31023312130231 has 8 divisors (see below), whose sum is σ = 33907832613504. Its totient is φ = 28256527176960.

The previous prime is 31023312130201. The next prime is 31023312130253. The reversal of 31023312130231 is 13203121332013.

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

It is a cyclic number.

It is not a de Polignac number, because 31023312130231 - 2²³ = 31023303741623 is a prime.

It is a super-2 number, since 2×31023312130231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31023312130196 and 31023312130205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023312130201) 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, 29433881950 + ... + 29433883003.

It is an arithmetic number, because the mean of its divisors is an integer number (4238479076688).

Almost surely, 2^{31023312130231} is an apocalyptic number.

31023312130231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31023312130231 is a deficient number, since it is larger than the sum of its proper divisors (2884520483273).

31023312130231 is a wasteful number, since it uses less digits than its factorization.

31023312130231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58867765001.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31023312130231 its reverse (13203121332013), we get a palindrome (44226433462244).

The spelling of 31023312130231 in words is "thirty-one trillion, twenty-three billion, three hundred twelve million, one hundred thirty thousand, two hundred thirty-one".