22312031031013 has 16 divisors (see below), whose sum is σ = 23678471695536. Its totient is φ = 20951616225280.

The previous prime is 22312031031001. The next prime is 22312031031067. The reversal of 22312031031013 is 31013013021322.

It can be written as a sum of positive squares in 8 ways, for example, as 1684746888484 + 20627284142529 = 1297978^2 + 4541727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22312031031013 is a prime.

It is a super-3 number, since 3×22312031031013³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22312031031113) 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, 23925795 + ... + 24840847.

It is an arithmetic number, because the mean of its divisors is an integer number (1479904480971).

Almost surely, 2^{22312031031013} is an apocalyptic number.

It is an amenable number.

22312031031013 is a deficient number, since it is larger than the sum of its proper divisors (1366440664523).

22312031031013 is a wasteful number, since it uses less digits than its factorization.

22312031031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918344.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 22312031031013 its reverse (31013013021322), we get a palindrome (53325044052335).

The spelling of 22312031031013 in words is "twenty-two trillion, three hundred twelve billion, thirty-one million, thirty-one thousand, thirteen".