3111103203020 has 24 divisors (see below), whose sum is σ = 6557424917568. Its totient is φ = 1239849244800.

The previous prime is 3111103203001. The next prime is 3111103203023. The reversal of 3111103203020 is 203023011113.

It is a self number, because there is not a number n which added to its sum of digits gives 3111103203020.

It is not an unprimeable number, because it can be changed into a prime (3111103203023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286996721 + ... + 287007560.

It is an arithmetic number, because the mean of its divisors is an integer number (273226038232).

Almost surely, 2^{3111103203020} is an apocalyptic number.

It is an amenable number.

3111103203020 is an abundant number, since it is smaller than the sum of its proper divisors (3446321714548).

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

3111103203020 is a wasteful number, since it uses less digits than its factorization.

3111103203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574004561 (or 574004559 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 3111103203020 its reverse (203023011113), we get a palindrome (3314126214133).

The spelling of 3111103203020 in words is "three trillion, one hundred eleven billion, one hundred three million, two hundred three thousand, twenty".