2113020123 has 8 divisors (see below), whose sum is σ = 2818080336. Its totient is φ = 1408320000.

The previous prime is 2113020101. The next prime is 2113020131. The reversal of 2113020123 is 3210203112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2113020123 - 2¹³ = 2113011931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2113020023) 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, 76018 + ... + 100023.

It is an arithmetic number, because the mean of its divisors is an integer number (352260042).

Almost surely, 2^2113020123 is an apocalyptic number.

2113020123 is a deficient number, since it is larger than the sum of its proper divisors (705060213).

2113020123 is a wasteful number, since it uses less digits than its factorization.

2113020123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180045.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2113020123 is about 45967.5986212027. The cubic root of 2113020123 is about 1283.2202694267.

Adding to 2113020123 its reverse (3210203112), we get a palindrome (5323223235).

The spelling of 2113020123 in words is "two billion, one hundred thirteen million, twenty thousand, one hundred twenty-three".