31240413111340 has 24 divisors (see below), whose sum is σ = 65605075719120. Its totient is φ = 12496125590208.

The previous prime is 31240413111331. The next prime is 31240413111403. The reversal of 31240413111340 is 4311131404213.

It is a super-2 number, since 2×31240413111340² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31240413111299 and 31240413111308.

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, 4454766 + ... + 9073354.

It is an arithmetic number, because the mean of its divisors is an integer number (2733544821630).

Almost surely, 2^{31240413111340} is an apocalyptic number.

It is an amenable number.

31240413111340 is an abundant number, since it is smaller than the sum of its proper divisors (34364662607780).

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

31240413111340 is a wasteful number, since it uses less digits than its factorization.

31240413111340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956801 (or 4956799 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 31240413111340 its reverse (4311131404213), we get a palindrome (35551544515553).

The spelling of 31240413111340 in words is "thirty-one trillion, two hundred forty billion, four hundred thirteen million, one hundred eleven thousand, three hundred forty".