31440412213412 has 24 divisors (see below), whose sum is σ = 57957947544000. Its totient is φ = 14882181450336.

The previous prime is 31440412213409. The next prime is 31440412213501. The reversal of 31440412213412 is 21431221404413.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147745583 + ... + 147958230.

It is an arithmetic number, because the mean of its divisors is an integer number (2414914481000).

Almost surely, 2^{31440412213412} is an apocalyptic number.

It is an amenable number.

31440412213412 is a deficient number, since it is larger than the sum of its proper divisors (26517535330588).

31440412213412 is a wasteful number, since it uses less digits than its factorization.

31440412213412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295705235 (or 295705233 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 31440412213412 its reverse (21431221404413), we get a palindrome (52871633617825).

The spelling of 31440412213412 in words is "thirty-one trillion, four hundred forty billion, four hundred twelve million, two hundred thirteen thousand, four hundred twelve".