2521213423 has 2 divisors, whose sum is σ = 2521213424. Its totient is φ = 2521213422.

The previous prime is 2521213393. The next prime is 2521213439. The reversal of 2521213423 is 3243121252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2521213423 - 2¹⁷ = 2521082351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2521219423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260606711 + 1260606712.

It is an arithmetic number, because the mean of its divisors is an integer number (1260606712).

Almost surely, 2^2521213423 is an apocalyptic number.

2521213423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521213423 is an equidigital number, since it uses as much as digits as its factorization.

2521213423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 2521213423 is about 50211.6861198666. The cubic root of 2521213423 is about 1361.0368072396.

Adding to 2521213423 its reverse (3243121252), we get a palindrome (5764334675).

The spelling of 2521213423 in words is "two billion, five hundred twenty-one million, two hundred thirteen thousand, four hundred twenty-three".