31320111322000 has 40 divisors (see below), whose sum is σ = 75732029181432. Its totient is φ = 12528044528000.

The previous prime is 31320111321971. The next prime is 31320111322007. The reversal of 31320111322000 is 22311102313.

It can be written as a sum of positive squares in 4 ways, for example, as 3742321202064 + 27577790119936 = 1934508^2 + 5251456^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (31320111322007) 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, 7830025831 + ... + 7830029830.

Almost surely, 2^{31320111322000} is an apocalyptic number.

It is an amenable number.

31320111322000 is an abundant number, since it is smaller than the sum of its proper divisors (44411917859432).

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

31320111322000 is a wasteful number, since it uses less digits than its factorization.

31320111322000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15660055684 (or 15660055668 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31320111322000 its reverse (22311102313), we get a palindrome (31342422424313).

The spelling of 31320111322000 in words is "thirty-one trillion, three hundred twenty billion, one hundred eleven million, three hundred twenty-two thousand".