31302013042 has 8 divisors (see below), whose sum is σ = 46991227500. Its totient is φ = 15638270544.

The previous prime is 31302013031. The next prime is 31302013051. The reversal of 31302013042 is 24031020313.

It can be written as a sum of positive squares in 2 ways, for example, as 31219002721 + 83010321 = 176689^2 + 9111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6364917 + ... + 6369832.

Almost surely, 2^31302013042 is an apocalyptic number.

31302013042 is a deficient number, since it is larger than the sum of its proper divisors (15689214458).

31302013042 is a wasteful number, since it uses less digits than its factorization.

31302013042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12735980.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31302013042 its reverse (24031020313), we get a palindrome (55333033355).

The spelling of 31302013042 in words is "thirty-one billion, three hundred two million, thirteen thousand, forty-two".