31400244141 has 24 divisors (see below), whose sum is σ = 48787843104. Its totient is φ = 17911524960.

The previous prime is 31400244119. The next prime is 31400244157. The reversal of 31400244141 is 14144200413.

It is not a de Polignac number, because 31400244141 - 2¹⁰ = 31400243117 is a prime.

It is a super-2 number, since 2×31400244141² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31400244101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103110 + ... + 270983.

It is an arithmetic number, because the mean of its divisors is an integer number (2032826796).

Almost surely, 2^31400244141 is an apocalyptic number.

It is an amenable number.

31400244141 is a deficient number, since it is larger than the sum of its proper divisors (17387598963).

31400244141 is a wasteful number, since it uses less digits than its factorization.

31400244141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374681 (or 374674 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31400244141 its reverse (14144200413), we get a palindrome (45544444554).

The spelling of 31400244141 in words is "thirty-one billion, four hundred million, two hundred forty-four thousand, one hundred forty-one".