31102344242 has 8 divisors (see below), whose sum is σ = 47791407132. Its totient is φ = 15171875200.

The previous prime is 31102344239. The next prime is 31102344281. The reversal of 31102344242 is 24244320113.

It can be written as a sum of positive squares in 2 ways, for example, as 31084863481 + 17480761 = 176309^2 + 4181^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189648359 + ... + 189648522.

Almost surely, 2^31102344242 is an apocalyptic number.

31102344242 is a deficient number, since it is larger than the sum of its proper divisors (16689062890).

31102344242 is a wasteful number, since it uses less digits than its factorization.

31102344242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379296924.

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

Adding to 31102344242 its reverse (24244320113), we get a palindrome (55346664355).

The spelling of 31102344242 in words is "thirty-one billion, one hundred two million, three hundred forty-four thousand, two hundred forty-two".