2421120523 has 4 divisors (see below), whose sum is σ = 2421246160. Its totient is φ = 2420994888.

The previous prime is 2421120521. The next prime is 2421120539. The reversal of 2421120523 is 3250211242.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2421120523 - 2¹ = 2421120521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2421120494 and 2421120503.

It is not an unprimeable number, because it can be changed into a prime (2421120521) 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, 27168 + ... + 74701.

It is an arithmetic number, because the mean of its divisors is an integer number (605311540).

Almost surely, 2^2421120523 is an apocalyptic number.

2421120523 is a deficient number, since it is larger than the sum of its proper divisors (125637).

2421120523 is a wasteful number, since it uses less digits than its factorization.

2421120523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125636.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2421120523 is about 49204.8831214952. The cubic root of 2421120523 is about 1342.7818726209.

Adding to 2421120523 its reverse (3250211242), we get a palindrome (5671331765).

The spelling of 2421120523 in words is "two billion, four hundred twenty-one million, one hundred twenty thousand, five hundred twenty-three".