31143132340424 has 32 divisors (see below), whose sum is σ = 62885697813120. Its totient is φ = 14373632990016.

The previous prime is 31143132340409. The next prime is 31143132340471. The reversal of 31143132340424 is 42404323134113.

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, 11879729 + ... + 14262335.

It is an arithmetic number, because the mean of its divisors is an integer number (1965178056660).

Almost surely, 2^{31143132340424} is an apocalyptic number.

It is an amenable number.

31143132340424 is an abundant number, since it is smaller than the sum of its proper divisors (31742565472696).

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

31143132340424 is a wasteful number, since it uses less digits than its factorization.

31143132340424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508309 (or 2508305 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 31143132340424 its reverse (42404323134113), we get a palindrome (73547455474537).

The spelling of 31143132340424 in words is "thirty-one trillion, one hundred forty-three billion, one hundred thirty-two million, three hundred forty thousand, four hundred twenty-four".