113111123020 has 48 divisors (see below), whose sum is σ = 271507844160. Its totient is φ = 38775078144.

The previous prime is 113111122991. The next prime is 113111123051. The reversal of 113111123020 is 20321111311.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 113111122985 and 113111123003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921846 + ... + 1037314.

It is an arithmetic number, because the mean of its divisors is an integer number (5656413420).

Almost surely, 2^113111123020 is an apocalyptic number.

113111123020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113111123020 is an abundant number, since it is smaller than the sum of its proper divisors (158396721140).

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

113111123020 is a wasteful number, since it uses less digits than its factorization.

113111123020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122482 (or 122480 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 113111123020 its reverse (20321111311), we get a palindrome (133432234331).

The spelling of 113111123020 in words is "one hundred thirteen billion, one hundred eleven million, one hundred twenty-three thousand, twenty".