2113614421 has 2 divisors, whose sum is σ = 2113614422. Its totient is φ = 2113614420.

The previous prime is 2113614409. The next prime is 2113614431. The reversal of 2113614421 is 1244163112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1940402500 + 173211921 = 44050^2 + 13161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113614421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113614431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056807210 + 1056807211.

It is an arithmetic number, because the mean of its divisors is an integer number (1056807211).

Almost surely, 2^2113614421 is an apocalyptic number.

It is an amenable number.

2113614421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113614421 is an equidigital number, since it uses as much as digits as its factorization.

2113614421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 2113614421 is about 45974.0624809250. The cubic root of 2113614421 is about 1283.3405622951.

Adding to 2113614421 its reverse (1244163112), we get a palindrome (3357777533).

The spelling of 2113614421 in words is "two billion, one hundred thirteen million, six hundred fourteen thousand, four hundred twenty-one".