31324012042 has 16 divisors (see below), whose sum is σ = 47072115360. Its totient is φ = 15633332208.

The previous prime is 31324012037. The next prime is 31324012051. The reversal of 31324012042 is 24021042313.

It is a super-2 number, since 2×31324012042² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3156853 + ... + 3166759.

It is an arithmetic number, because the mean of its divisors is an integer number (2942007210).

Almost surely, 2^31324012042 is an apocalyptic number.

31324012042 is a deficient number, since it is larger than the sum of its proper divisors (15748103318).

31324012042 is a wasteful number, since it uses less digits than its factorization.

31324012042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12645.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31324012042 its reverse (24021042313), we get a palindrome (55345054355).

The spelling of 31324012042 in words is "thirty-one billion, three hundred twenty-four million, twelve thousand, forty-two".