31503114242 has 16 divisors (see below), whose sum is σ = 47871440640. Its totient is φ = 15546122592.

The previous prime is 31503114241. The next prime is 31503114263. The reversal of 31503114242 is 24241130513.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31503114241) 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, 383318 + ... + 458190.

It is an arithmetic number, because the mean of its divisors is an integer number (2991965040).

Almost surely, 2^31503114242 is an apocalyptic number.

31503114242 is a deficient number, since it is larger than the sum of its proper divisors (16368326398).

31503114242 is a wasteful number, since it uses less digits than its factorization.

31503114242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77617.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 31503114242 its reverse (24241130513), we get a palindrome (55744244755).

The spelling of 31503114242 in words is "thirty-one billion, five hundred three million, one hundred fourteen thousand, two hundred forty-two".