2102101451 has 2 divisors, whose sum is σ = 2102101452. Its totient is φ = 2102101450.

The previous prime is 2102101433. The next prime is 2102101481. The reversal of 2102101451 is 1541012012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102101451 - 2³⁰ = 1028359627 is a prime.

It is not a weakly prime, because it can be changed into another prime (2102101481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051050725 + 1051050726.

It is an arithmetic number, because the mean of its divisors is an integer number (1051050726).

Almost surely, 2^2102101451 is an apocalyptic number.

2102101451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102101451 is an equidigital number, since it uses as much as digits as its factorization.

2102101451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 2102101451 is about 45848.6799264712. The cubic root of 2102101451 is about 1281.0061772448.

Adding to 2102101451 its reverse (1541012012), we get a palindrome (3643113463).

The spelling of 2102101451 in words is "two billion, one hundred two million, one hundred one thousand, four hundred fifty-one".