31031242442 has 16 divisors (see below), whose sum is σ = 48746005632. Its totient is φ = 14787445200.

The previous prime is 31031242439. The next prime is 31031242481. The reversal of 31031242442 is 24424213013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1204934 + ... + 1230417.

It is an arithmetic number, because the mean of its divisors is an integer number (3046625352).

Almost surely, 2^31031242442 is an apocalyptic number.

31031242442 is a deficient number, since it is larger than the sum of its proper divisors (17714763190).

31031242442 is a wasteful number, since it uses less digits than its factorization.

31031242442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435653.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31031242442 its reverse (24424213013), we get a palindrome (55455455455).

The spelling of 31031242442 in words is "thirty-one billion, thirty-one million, two hundred forty-two thousand, four hundred forty-two".