31433230443012 has 24 divisors (see below), whose sum is σ = 73716509978496. Its totient is φ = 10424556965088.

The previous prime is 31433230442959. The next prime is 31433230443053. The reversal of 31433230443012 is 21034403233413.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 6648312028 + ... + 6648316755.

It is an arithmetic number, because the mean of its divisors is an integer number (3071521249104).

Almost surely, 2^{31433230443012} is an apocalyptic number.

It is an amenable number.

31433230443012 is an abundant number, since it is smaller than the sum of its proper divisors (42283279535484).

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

31433230443012 is a wasteful number, since it uses less digits than its factorization.

31433230443012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13296628987 (or 13296628985 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 31433230443012 its reverse (21034403233413), we get a palindrome (52467633676425).

The spelling of 31433230443012 in words is "thirty-one trillion, four hundred thirty-three billion, two hundred thirty million, four hundred forty-three thousand, twelve".