31545044043 has 16 divisors (see below), whose sum is σ = 42757111200. Its totient is φ = 20683137024.

The previous prime is 31545043969. The next prime is 31545044087. The reversal of 31545044043 is 34044054513.

It is a happy number.

It is not a de Polignac number, because 31545044043 - 2¹⁸ = 31544781899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31545043995 and 31545044013.

It is not an unprimeable number, because it can be changed into a prime (31545044543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126718 + ... + 281331.

It is an arithmetic number, because the mean of its divisors is an integer number (2672319450).

Almost surely, 2^31545044043 is an apocalyptic number.

31545044043 is a deficient number, since it is larger than the sum of its proper divisors (11212067157).

31545044043 is a wasteful number, since it uses less digits than its factorization.

31545044043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408478.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 31545044043 its reverse (34044054513), we get a palindrome (65589098556).

The spelling of 31545044043 in words is "thirty-one billion, five hundred forty-five million, forty-four thousand, forty-three".