31412120144 has 20 divisors (see below), whose sum is σ = 61892526720. Its totient is φ = 15439855200.

The previous prime is 31412120137. The next prime is 31412120149. The reversal of 31412120144 is 44102121413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31412120149) 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, 16636832 + ... + 16638719.

It is an arithmetic number, because the mean of its divisors is an integer number (3094626336).

Almost surely, 2^31412120144 is an apocalyptic number.

It is an amenable number.

31412120144 is a deficient number, since it is larger than the sum of its proper divisors (30480406576).

31412120144 is a wasteful number, since it uses less digits than its factorization.

31412120144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33275618 (or 33275612 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 31412120144 its reverse (44102121413), we get a palindrome (75514241557).

The spelling of 31412120144 in words is "thirty-one billion, four hundred twelve million, one hundred twenty thousand, one hundred forty-four".