31301122402 has 48 divisors (see below), whose sum is σ = 52267493376. Its totient is φ = 14047140800.

The previous prime is 31301122393. The next prime is 31301122429. The reversal of 31301122402 is 20422110313.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31301122402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6329943 + ... + 6334885.

It is an arithmetic number, because the mean of its divisors is an integer number (1088906112).

Almost surely, 2^31301122402 is an apocalyptic number.

31301122402 is a deficient number, since it is larger than the sum of its proper divisors (20966370974).

31301122402 is a wasteful number, since it uses less digits than its factorization.

31301122402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5295 (or 5284 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31301122402 its reverse (20422110313), we get a palindrome (51723232715).

The spelling of 31301122402 in words is "thirty-one billion, three hundred one million, one hundred twenty-two thousand, four hundred two".