31231342024 has 16 divisors (see below), whose sum is σ = 58663907100. Its totient is φ = 15587633472.

The previous prime is 31231341949. The next prime is 31231342027. The reversal of 31231342024 is 42024313213.

It can be written as a sum of positive squares in 2 ways, for example, as 22467012100 + 8764329924 = 149890^2 + 93618^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31231342024.

It is not an unprimeable number, because it can be changed into a prime (31231342027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3499959 + ... + 3508870.

Almost surely, 2^31231342024 is an apocalyptic number.

It is an amenable number.

31231342024 is a deficient number, since it is larger than the sum of its proper divisors (27432565076).

31231342024 is a wasteful number, since it uses less digits than its factorization.

31231342024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009392 (or 7009388 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31231342024 its reverse (42024313213), we get a palindrome (73255655237).

The spelling of 31231342024 in words is "thirty-one billion, two hundred thirty-one million, three hundred forty-two thousand, twenty-four".