3111140240405 has 32 divisors (see below), whose sum is σ = 3869975370240. Its totient is φ = 2398195537920.

The previous prime is 3111140240339. The next prime is 3111140240407. The reversal of 3111140240405 is 5040420411113.

It is not a de Polignac number, because 3111140240405 - 2²⁶ = 3111073131541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111140240407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156038597 + ... + 156058533.

It is an arithmetic number, because the mean of its divisors is an integer number (120936730320).

Almost surely, 2^{3111140240405} is an apocalyptic number.

It is an amenable number.

3111140240405 is a deficient number, since it is larger than the sum of its proper divisors (758835129835).

3111140240405 is a wasteful number, since it uses less digits than its factorization.

3111140240405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22109.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 3111140240405 its reverse (5040420411113), we get a palindrome (8151560651518).

The spelling of 3111140240405 in words is "three trillion, one hundred eleven billion, one hundred forty million, two hundred forty thousand, four hundred five".