2421325381 has 2 divisors, whose sum is σ = 2421325382. Its totient is φ = 2421325380.

The previous prime is 2421325331. The next prime is 2421325409. The reversal of 2421325381 is 1835231242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1776622500 + 644702881 = 42150^2 + 25391^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421325381 - 2¹⁵ = 2421292613 is a prime.

It is a super-2 number, since 2×2421325381² = 11725633201349590322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421325301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210662690 + 1210662691.

It is an arithmetic number, because the mean of its divisors is an integer number (1210662691).

Almost surely, 2^2421325381 is an apocalyptic number.

It is an amenable number.

2421325381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421325381 is an equidigital number, since it uses as much as digits as its factorization.

2421325381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 2421325381 is about 49206.9647610986. The cubic root of 2421325381 is about 1342.8197437702.

It can be divided in two parts, 24213 and 25381, that added together give a palindrome (49594).

The spelling of 2421325381 in words is "two billion, four hundred twenty-one million, three hundred twenty-five thousand, three hundred eighty-one".