31333333142 has 16 divisors (see below), whose sum is σ = 48945485952. Its totient is φ = 15027116160.

The previous prime is 31333333103. The next prime is 31333333217. The reversal of 31333333142 is 24133333313.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2229173 + ... + 2243184.

It is an arithmetic number, because the mean of its divisors is an integer number (3059092872).

Almost surely, 2^31333333142 is an apocalyptic number.

31333333142 is a deficient number, since it is larger than the sum of its proper divisors (17612152810).

31333333142 is a wasteful number, since it uses less digits than its factorization.

31333333142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472503.

The product of its digits is 17496, while the sum is 29.

Adding to 31333333142 its reverse (24133333313), we get a palindrome (55466666455).

The spelling of 31333333142 in words is "thirty-one billion, three hundred thirty-three million, three hundred thirty-three thousand, one hundred forty-two".