31433214012 has 24 divisors (see below), whose sum is σ = 73623048576. Its totient is φ = 10437897648.

The previous prime is 31433213953. The next prime is 31433214019. The reversal of 31433214012 is 21041233413.

It is a happy number.

It is a super-2 number, since 2×31433214012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31433214019) 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, 4976758 + ... + 4983069.

It is an arithmetic number, because the mean of its divisors is an integer number (3067627024).

Almost surely, 2^31433214012 is an apocalyptic number.

It is an amenable number.

31433214012 is an abundant number, since it is smaller than the sum of its proper divisors (42189834564).

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

31433214012 is a wasteful number, since it uses less digits than its factorization.

31433214012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9960097 (or 9960095 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31433214012 its reverse (21041233413), we get a palindrome (52474447425).

The spelling of 31433214012 in words is "thirty-one billion, four hundred thirty-three million, two hundred fourteen thousand, twelve".