31210341231 has 16 divisors (see below), whose sum is σ = 43265223680. Its totient is φ = 19990834560.

The previous prime is 31210341223. The next prime is 31210341247. The reversal of 31210341231 is 13214301213.

It is not a de Polignac number, because 31210341231 - 2³ = 31210341223 is a prime.

It is a super-2 number, since 2×31210341231² (a number of 22 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 = 31210341198 and 31210341207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31210341731) 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, 1194250 + ... + 1220103.

It is an arithmetic number, because the mean of its divisors is an integer number (2704076480).

Almost surely, 2^31210341231 is an apocalyptic number.

31210341231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31210341231 is a deficient number, since it is larger than the sum of its proper divisors (12054882449).

31210341231 is a wasteful number, since it uses less digits than its factorization.

31210341231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414526.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31210341231 its reverse (13214301213), we get a palindrome (44424642444).

The spelling of 31210341231 in words is "thirty-one billion, two hundred ten million, three hundred forty-one thousand, two hundred thirty-one".