31422011312 has 20 divisors (see below), whose sum is σ = 60894673920. Its totient is φ = 15707256768.

The previous prime is 31422011293. The next prime is 31422011329. The reversal of 31422011312 is 21311022413.

It is a super-2 number, since 2×31422011312² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164528 + ... + 299855.

It is an arithmetic number, because the mean of its divisors is an integer number (3044733696).

Almost surely, 2^31422011312 is an apocalyptic number.

It is an amenable number.

31422011312 is a deficient number, since it is larger than the sum of its proper divisors (29472662608).

31422011312 is a wasteful number, since it uses less digits than its factorization.

31422011312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468620 (or 468614 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31422011312 its reverse (21311022413), we get a palindrome (52733033725).

The spelling of 31422011312 in words is "thirty-one billion, four hundred twenty-two million, eleven thousand, three hundred twelve".