31825104042 has 16 divisors (see below), whose sum is σ = 64546690752. Its totient is φ = 10458954240.

The previous prime is 31825104041. The next prime is 31825104089. The reversal of 31825104042 is 24040152813.

It is not an unprimeable number, because it can be changed into a prime (31825104041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37352983 + ... + 37353834.

It is an arithmetic number, because the mean of its divisors is an integer number (4034168172).

Almost surely, 2^31825104042 is an apocalyptic number.

31825104042 is an abundant number, since it is smaller than the sum of its proper divisors (32721586710).

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

31825104042 is a wasteful number, since it uses less digits than its factorization.

31825104042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74706893.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 31825104042 its reverse (24040152813), we get a palindrome (55865256855).

The spelling of 31825104042 in words is "thirty-one billion, eight hundred twenty-five million, one hundred four thousand, forty-two".