31123304342 has 8 divisors (see below), whose sum is σ = 50276107056. Its totient is φ = 14364601992.

The previous prime is 31123304341. The next prime is 31123304357. The reversal of 31123304342 is 24340332113.

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 1197050167 = 31123304342 / (3 + 1 + 1 + 2 + 3 + 3 + 0 + 4 + 3 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31123304341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598525058 + ... + 598525109.

It is an arithmetic number, because the mean of its divisors is an integer number (6284513382).

Almost surely, 2^31123304342 is an apocalyptic number.

31123304342 is a deficient number, since it is larger than the sum of its proper divisors (19152802714).

31123304342 is a wasteful number, since it uses less digits than its factorization.

31123304342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197050182.

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

Adding to 31123304342 its reverse (24340332113), we get a palindrome (55463636455).

The spelling of 31123304342 in words is "thirty-one billion, one hundred twenty-three million, three hundred four thousand, three hundred forty-two".