31241521231112 has 16 divisors (see below), whose sum is σ = 58937225637840. Its totient is φ = 15524927727696.

The previous prime is 31241521231111. The next prime is 31241521231117. The reversal of 31241521231112 is 21113212514213.

It is a super-2 number, since 2×31241521231112² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31241521231111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11979109598 + ... + 11979112205.

It is an arithmetic number, because the mean of its divisors is an integer number (3683576602365).

Almost surely, 2^{31241521231112} is an apocalyptic number.

It is an amenable number.

31241521231112 is a deficient number, since it is larger than the sum of its proper divisors (27695704406728).

31241521231112 is a wasteful number, since it uses less digits than its factorization.

31241521231112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23958221972 (or 23958221968 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

Adding to 31241521231112 its reverse (21113212514213), we get a palindrome (52354733745325).

The spelling of 31241521231112 in words is "thirty-one trillion, two hundred forty-one billion, five hundred twenty-one million, two hundred thirty-one thousand, one hundred twelve".