31440012401143 has 8 divisors (see below), whose sum is σ = 33637286780720. Its totient is φ = 29296991710080.

The previous prime is 31440012401141. The next prime is 31440012401167. The reversal of 31440012401143 is 34110421004413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31440012401143 - 2¹ = 31440012401141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31440012401141) 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, 13563420930 + ... + 13563423247.

It is an arithmetic number, because the mean of its divisors is an integer number (4204660847590).

Almost surely, 2^{31440012401143} is an apocalyptic number.

31440012401143 is a deficient number, since it is larger than the sum of its proper divisors (2197274379577).

31440012401143 is a wasteful number, since it uses less digits than its factorization.

31440012401143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27126844257.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 31440012401143 its reverse (34110421004413), we get a palindrome (65550433405556).

The spelling of 31440012401143 in words is "thirty-one trillion, four hundred forty billion, twelve million, four hundred one thousand, one hundred forty-three".