31033243142 has 32 divisors (see below), whose sum is σ = 51123290400. Its totient is φ = 14011315200.

The previous prime is 31033243139. The next prime is 31033243159. The reversal of 31033243142 is 24134233013.

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 15 ways as a sum of consecutive naturals, for example, 3695084 + ... + 3703472.

It is an arithmetic number, because the mean of its divisors is an integer number (1597602825).

Almost surely, 2^31033243142 is an apocalyptic number.

31033243142 is a deficient number, since it is larger than the sum of its proper divisors (20090047258).

31033243142 is a wasteful number, since it uses less digits than its factorization.

31033243142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9512.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31033243142 its reverse (24134233013), we get a palindrome (55167476155).

The spelling of 31033243142 in words is "thirty-one billion, thirty-three million, two hundred forty-three thousand, one hundred forty-two".