2520123113 has 4 divisors (see below), whose sum is σ = 2607023940. Its totient is φ = 2433222288.

The previous prime is 2520123079. The next prime is 2520123149. The reversal of 2520123113 is 3113210252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 651117289 + 1869005824 = 25517^2 + 43232^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520123113 - 2¹⁰ = 2520122089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520123173) 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, 43450370 + ... + 43450427.

It is an arithmetic number, because the mean of its divisors is an integer number (651755985).

Almost surely, 2^2520123113 is an apocalyptic number.

It is an amenable number.

2520123113 is a deficient number, since it is larger than the sum of its proper divisors (86900827).

2520123113 is an equidigital number, since it uses as much as digits as its factorization.

2520123113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86900826.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2520123113 is about 50200.8278118997. The cubic root of 2520123113 is about 1360.8405834698.

Adding to 2520123113 its reverse (3113210252), we get a palindrome (5633333365).

It can be divided in two parts, 25201231 and 13, that multiplied together give a triangular number (327616003 = T₂₅₅₉₇).

The spelling of 2520123113 in words is "two billion, five hundred twenty million, one hundred twenty-three thousand, one hundred thirteen".