2312061631 has 8 divisors (see below), whose sum is σ = 2533266000. Its totient is φ = 2092693440.

The previous prime is 2312061611. The next prime is 2312061649. The reversal of 2312061631 is 1361602132.

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 2312061631 - 2⁹ = 2312061119 is a prime.

It is a super-2 number, since 2×2312061631² = 10691257971084760322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2312061596 and 2312061605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312061611) 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, 456406 + ... + 461443.

It is an arithmetic number, because the mean of its divisors is an integer number (316658250).

Almost surely, 2^2312061631 is an apocalyptic number.

2312061631 is a deficient number, since it is larger than the sum of its proper divisors (221204369).

2312061631 is a wasteful number, since it uses less digits than its factorization.

2312061631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918089.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2312061631 is about 48083.9019943265. The cubic root of 2312061631 is about 1322.3095530878.

Adding to 2312061631 its reverse (1361602132), we get a palindrome (3673663763).

The spelling of 2312061631 in words is "two billion, three hundred twelve million, sixty-one thousand, six hundred thirty-one".