31033442342 has 48 divisors (see below), whose sum is σ = 54431844480. Its totient is φ = 13231072512.

The previous prime is 31033442309. The next prime is 31033442347. The reversal of 31033442342 is 24324433013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31033442347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21565259 + ... + 21566697.

It is an arithmetic number, because the mean of its divisors is an integer number (1133996760).

Almost surely, 2^31033442342 is an apocalyptic number.

31033442342 is a deficient number, since it is larger than the sum of its proper divisors (23398402138).

31033442342 is a wasteful number, since it uses less digits than its factorization.

31033442342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445 (or 2438 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 31033442342 its reverse (24324433013), we get a palindrome (55357875355).

The spelling of 31033442342 in words is "thirty-one billion, thirty-three million, four hundred forty-two thousand, three hundred forty-two".