2102441651 has 2 divisors, whose sum is σ = 2102441652. Its totient is φ = 2102441650.

The previous prime is 2102441633. The next prime is 2102441687. The reversal of 2102441651 is 1561442012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102441651 - 2⁶ = 2102441587 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102441651.

It is not a weakly prime, because it can be changed into another prime (2102441611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051220825 + 1051220826.

It is an arithmetic number, because the mean of its divisors is an integer number (1051220826).

Almost surely, 2^2102441651 is an apocalyptic number.

2102441651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102441651 is an equidigital number, since it uses as much as digits as its factorization.

2102441651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2102441651 is about 45852.3898068574. The cubic root of 2102441651 is about 1281.0752786978.

Adding to 2102441651 its reverse (1561442012), we get a palindrome (3663883663).

The spelling of 2102441651 in words is "two billion, one hundred two million, four hundred forty-one thousand, six hundred fifty-one".