2113311451 has 2 divisors, whose sum is σ = 2113311452. Its totient is φ = 2113311450.

The previous prime is 2113311439. The next prime is 2113311457. The reversal of 2113311451 is 1541133112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2113311451 - 2¹¹ = 2113309403 is a prime.

It is not a weakly prime, because it can be changed into another prime (2113311457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056655725 + 1056655726.

It is an arithmetic number, because the mean of its divisors is an integer number (1056655726).

Almost surely, 2^2113311451 is an apocalyptic number.

2113311451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113311451 is an equidigital number, since it uses as much as digits as its factorization.

2113311451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 22.

The square root of 2113311451 is about 45970.7673527428. The cubic root of 2113311451 is about 1283.2792404403.

Adding to 2113311451 its reverse (1541133112), we get a palindrome (3654444563).

The spelling of 2113311451 in words is "two billion, one hundred thirteen million, three hundred eleven thousand, four hundred fifty-one".