2311332111020 has 12 divisors (see below), whose sum is σ = 4853797433184. Its totient is φ = 924532844400.

The previous prime is 2311332111001. The next prime is 2311332111041. The reversal of 2311332111020 is 201112331132.

It is a happy number.

It is a super-2 number, since 2×2311332111020² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 115566605551 = 2311332111020 / (2 + 3 + 1 + 1 + 3 + 3 + 2 + 1 + 1 + 1 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2311332110983 and 2311332111001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57783302756 + ... + 57783302795.

It is an arithmetic number, because the mean of its divisors is an integer number (404483119432).

Almost surely, 2^{2311332111020} is an apocalyptic number.

2311332111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311332111020 is an abundant number, since it is smaller than the sum of its proper divisors (2542465322164).

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

2311332111020 is a wasteful number, since it uses less digits than its factorization.

2311332111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115566605560 (or 115566605558 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2311332111020 its reverse (201112331132), we get a palindrome (2512444442152).

The spelling of 2311332111020 in words is "two trillion, three hundred eleven billion, three hundred thirty-two million, one hundred eleven thousand, twenty".