31103243342 has 4 divisors (see below), whose sum is σ = 46654865016. Its totient is φ = 15551621670.

The previous prime is 31103243287. The next prime is 31103243359. The reversal of 31103243342 is 24334230113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24334230113 = 62683 ⋅388211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7775810834 + ... + 7775810837.

It is an arithmetic number, because the mean of its divisors is an integer number (11663716254).

Almost surely, 2^31103243342 is an apocalyptic number.

31103243342 is a deficient number, since it is larger than the sum of its proper divisors (15551621674).

31103243342 is a wasteful number, since it uses less digits than its factorization.

31103243342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15551621673.

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

Adding to 31103243342 its reverse (24334230113), we get a palindrome (55437473455).

The spelling of 31103243342 in words is "thirty-one billion, one hundred three million, two hundred forty-three thousand, three hundred forty-two".