2311440220525 has 12 divisors (see below), whose sum is σ = 2866269578752. Its totient is φ = 1849098173040.

The previous prime is 2311440220513. The next prime is 2311440220541. The reversal of 2311440220525 is 5250220441132.

It is a happy number.

It is not a de Polignac number, because 2311440220525 - 2⁹ = 2311440220013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 465567 + ... + 2199916.

Almost surely, 2^{2311440220525} is an apocalyptic number.

2311440220525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2311440220525 is a deficient number, since it is larger than the sum of its proper divisors (554829358227).

2311440220525 is a wasteful number, since it uses less digits than its factorization.

2311440220525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700180 (or 2700175 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 2311440220525 its reverse (5250220441132), we get a palindrome (7561660661657).

The spelling of 2311440220525 in words is "two trillion, three hundred eleven billion, four hundred forty million, two hundred twenty thousand, five hundred twenty-five".