31440341144412 has 36 divisors (see below), whose sum is σ = 80480198154720. Its totient is φ = 10347454046592.

The previous prime is 31440341144411. The next prime is 31440341144489. The reversal of 31440341144412 is 21444114304413.

31440341144412 is a `hidden beast` number, since 3 + 1 + 440 + 34 + 1 + 144 + 41 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31440341144411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5527483293 + ... + 5527488980.

Almost surely, 2^{31440341144412} is an apocalyptic number.

It is an amenable number.

31440341144412 is an abundant number, since it is smaller than the sum of its proper divisors (49039857010308).

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

31440341144412 is a wasteful number, since it uses less digits than its factorization.

31440341144412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11054972362 (or 11054972357 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

Adding to 31440341144412 its reverse (21444114304413), we get a palindrome (52884455448825).

The spelling of 31440341144412 in words is "thirty-one trillion, four hundred forty billion, three hundred forty-one million, one hundred forty-four thousand, four hundred twelve".