2400123113 has 4 divisors (see below), whose sum is σ = 2402386308. Its totient is φ = 2397859920.

The previous prime is 2400123109. The next prime is 2400123151. The reversal of 2400123113 is 3113210042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3113210042 = 2 ⋅1556605021.

It can be written as a sum of positive squares in 2 ways, for example, as 1004129344 + 1395993769 = 31688^2 + 37363^2 .

It is a cyclic number.

It is not a de Polignac number, because 2400123113 - 2² = 2400123109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2400123091 and 2400123100.

It is not an unprimeable number, because it can be changed into a prime (2400122113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1130006 + ... + 1132127.

It is an arithmetic number, because the mean of its divisors is an integer number (600596577).

Almost surely, 2^2400123113 is an apocalyptic number.

It is an amenable number.

2400123113 is a deficient number, since it is larger than the sum of its proper divisors (2263195).

2400123113 is a wasteful number, since it uses less digits than its factorization.

2400123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263194.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2400123113 is about 48991.0513563447. The cubic root of 2400123113 is about 1338.8887930781. Note that the first 3 decimals are identical.

Adding to 2400123113 its reverse (3113210042), we get a palindrome (5513333155).

The spelling of 2400123113 in words is "two billion, four hundred million, one hundred twenty-three thousand, one hundred thirteen".