31312433043 has 6 divisors (see below), whose sum is σ = 45229069964. Its totient is φ = 20874955356.

The previous prime is 31312433021. The next prime is 31312433071. The reversal of 31312433043 is 34033421313.

31312433043 is a `hidden beast` number, since 3 + 1 + 312 + 43 + 304 + 3 = 666.

It is not a de Polignac number, because 31312433043 - 2¹⁷ = 31312301971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31312432998 and 31312433016.

It is not an unprimeable number, because it can be changed into a prime (31312433003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1739579605 + ... + 1739579622.

Almost surely, 2^31312433043 is an apocalyptic number.

31312433043 is a deficient number, since it is larger than the sum of its proper divisors (13916636921).

31312433043 is a wasteful number, since it uses less digits than its factorization.

31312433043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479159233 (or 3479159230 counting only the distinct ones).

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

Adding to 31312433043 its reverse (34033421313), we get a palindrome (65345854356).

The spelling of 31312433043 in words is "thirty-one billion, three hundred twelve million, four hundred thirty-three thousand, forty-three".