31231302222324 has 192 divisors, whose sum is σ = 76303774310400. Its totient is φ = 9933314383872.

The previous prime is 31231302222293. The next prime is 31231302222343. The reversal of 31231302222324 is 42322220313213.

It is a super-2 number, since 2×31231302222324² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31231302222291 and 31231302222300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9002968062 + ... + 9002971530.

It is an arithmetic number, because the mean of its divisors is an integer number (397415491200).

Almost surely, 2^{31231302222324} is an apocalyptic number.

It is an amenable number.

31231302222324 is an abundant number, since it is smaller than the sum of its proper divisors (45072472088076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31231302222324 is a wasteful number, since it uses less digits than its factorization.

31231302222324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5402 (or 5400 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 31231302222324 its reverse (42322220313213), we get a palindrome (73553522535537).

The spelling of 31231302222324 in words is "thirty-one trillion, two hundred thirty-one billion, three hundred two million, two hundred twenty-two thousand, three hundred twenty-four".