31143323043 has 64 divisors (see below), whose sum is σ = 56014801920. Its totient is φ = 16694263296.

The previous prime is 31143322979. The next prime is 31143323069. The reversal of 31143323043 is 34032334113.

31143323043 is a `hidden beast` number, since 311 + 43 + 3 + 2 + 304 + 3 = 666.

It is not a de Polignac number, because 31143323043 - 2⁶ = 31143322979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 31143322998 and 31143323016.

It is not an unprimeable number, because it can be changed into a prime (31143323543) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 970605 + ... + 1002177.

It is an arithmetic number, because the mean of its divisors is an integer number (875231280).

Almost surely, 2^31143323043 is an apocalyptic number.

31143323043 is a deficient number, since it is larger than the sum of its proper divisors (24871478877).

31143323043 is a wasteful number, since it uses less digits than its factorization.

31143323043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31913 (or 31907 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 31143323043 its reverse (34032334113), we get a palindrome (65175657156).

The spelling of 31143323043 in words is "thirty-one billion, one hundred forty-three million, three hundred twenty-three thousand, forty-three".