31425075043 has 4 divisors (see below), whose sum is σ = 31461744600. Its totient is φ = 31388405488.

The previous prime is 31425075029. The next prime is 31425075049. The reversal of 31425075043 is 34057052413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31425075043 - 2⁹ = 31425074531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31425075049) 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 3 ways as a sum of consecutive naturals, for example, 18333493 + ... + 18335206.

It is an arithmetic number, because the mean of its divisors is an integer number (7865436150).

Almost surely, 2^31425075043 is an apocalyptic number.

31425075043 is a deficient number, since it is larger than the sum of its proper divisors (36669557).

31425075043 is an equidigital number, since it uses as much as digits as its factorization.

31425075043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36669556.

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 31425075043 in words is "thirty-one billion, four hundred twenty-five million, seventy-five thousand, forty-three".