31434243412 has 96 divisors (see below), whose sum is σ = 69013324800. Its totient is φ = 12323404800.

The previous prime is 31434243391. The next prime is 31434243413. The reversal of 31434243412 is 21434243413.

It is a super-2 number, since 2×31434243412² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31434243413) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 483664 + ... + 544792.

It is an arithmetic number, because the mean of its divisors is an integer number (718888800).

Almost surely, 2^31434243412 is an apocalyptic number.

It is an amenable number.

31434243412 is an abundant number, since it is smaller than the sum of its proper divisors (37579081388).

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

31434243412 is a wasteful number, since it uses less digits than its factorization.

31434243412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61217 (or 61215 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

Adding to 31434243412 its reverse (21434243413), we get a palindrome (52868486825).

Subtracting from 31434243412 its reverse (21434243413), we obtain a palindrome (9999999999).

The spelling of 31434243412 in words is "thirty-one billion, four hundred thirty-four million, two hundred forty-three thousand, four hundred twelve".