31534222152242 has 8 divisors (see below), whose sum is σ = 49357912934016. Its totient is φ = 15081584507572.

The previous prime is 31534222152179. The next prime is 31534222152253. The reversal of 31534222152242 is 24225122243513.

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

It is a junction number, because it is equal to n+sod(n) for n = 31534222152196 and 31534222152205.

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, 342763284218 + ... + 342763284309.

It is an arithmetic number, because the mean of its divisors is an integer number (6169739116752).

Almost surely, 2^{31534222152242} is an apocalyptic number.

31534222152242 is a deficient number, since it is larger than the sum of its proper divisors (17823690781774).

31534222152242 is a wasteful number, since it uses less digits than its factorization.

31534222152242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685526568552.

The product of its digits is 230400, while the sum is 38.

Adding to 31534222152242 its reverse (24225122243513), we get a palindrome (55759344395755).

The spelling of 31534222152242 in words is "thirty-one trillion, five hundred thirty-four billion, two hundred twenty-two million, one hundred fifty-two thousand, two hundred forty-two".