31321110401442 has 24 divisors (see below), whose sum is σ = 69306286847616. Its totient is φ = 10218234598776.

The previous prime is 31321110401417. The next prime is 31321110401507. The reversal of 31321110401442 is 24410401112313.

It is a happy number.

31321110401442 is a `hidden beast` number, since 3 + 1 + 3 + 211 + 1 + 0 + 4 + 0 + 1 + 442 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18511293718 + ... + 18511295409.

It is an arithmetic number, because the mean of its divisors is an integer number (2887761951984).

Almost surely, 2^{31321110401442} is an apocalyptic number.

31321110401442 is an abundant number, since it is smaller than the sum of its proper divisors (37985176446174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31321110401442 is a wasteful number, since it uses less digits than its factorization.

31321110401442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37022589182 (or 37022589179 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 31321110401442 its reverse (24410401112313), we get a palindrome (55731511513755).

The spelling of 31321110401442 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred ten million, four hundred one thousand, four hundred forty-two".