31043122340 has 24 divisors (see below), whose sum is σ = 69025296312. Its totient is φ = 11686822400.

The previous prime is 31043122337. The next prime is 31043122343. The reversal of 31043122340 is 4322134013.

It is an interprime number because it is at equal distance from previous prime (31043122337) and next prime (31043122343).

It can be written as a sum of positive squares in 4 ways, for example, as 9046672996 + 21996449344 = 95114^2 + 148312^2 .

It is not an unprimeable number, because it can be changed into a prime (31043122343) 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, 45651311 + ... + 45651990.

It is an arithmetic number, because the mean of its divisors is an integer number (2876054013).

Almost surely, 2^31043122340 is an apocalyptic number.

It is an amenable number.

31043122340 is an abundant number, since it is smaller than the sum of its proper divisors (37982173972).

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

31043122340 is a wasteful number, since it uses less digits than its factorization.

31043122340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91303327 (or 91303325 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31043122340 its reverse (4322134013), we get a palindrome (35365256353).

The spelling of 31043122340 in words is "thirty-one billion, forty-three million, one hundred twenty-two thousand, three hundred forty".