31030142242 has 8 divisors (see below), whose sum is σ = 50776596432. Its totient is φ = 14104610100.

The previous prime is 31030142233. The next prime is 31030142263. The reversal of 31030142242 is 24224103013.

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 (22), and also a Moran number because the ratio is a prime number: 1410461011 = 31030142242 / (3 + 1 + 0 + 3 + 0 + 1 + 4 + 2 + 2 + 4 + 2).

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, 705230484 + ... + 705230527.

It is an arithmetic number, because the mean of its divisors is an integer number (6347074554).

Almost surely, 2^31030142242 is an apocalyptic number.

31030142242 is a deficient number, since it is larger than the sum of its proper divisors (19746454190).

31030142242 is a wasteful number, since it uses less digits than its factorization.

31030142242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410461024.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31030142242 its reverse (24224103013), we get a palindrome (55254245255).

The spelling of 31030142242 in words is "thirty-one billion, thirty million, one hundred forty-two thousand, two hundred forty-two".