31043023042 has 16 divisors (see below), whose sum is σ = 51146400960. Its totient is φ = 14065259472.

The previous prime is 31043023031. The next prime is 31043023049. The reversal of 31043023042 is 24032034013.

It is a happy number.

It is a super-2 number, since 2×31043023042² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31043023049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17758293 + ... + 17760040.

It is an arithmetic number, because the mean of its divisors is an integer number (3196650060).

Almost surely, 2^31043023042 is an apocalyptic number.

31043023042 is a deficient number, since it is larger than the sum of its proper divisors (20103377918).

31043023042 is a wasteful number, since it uses less digits than its factorization.

31043023042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35518377.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 31043023042 its reverse (24032034013), we get a palindrome (55075057055).

The spelling of 31043023042 in words is "thirty-one billion, forty-three million, twenty-three thousand, forty-two".