2102515423 has 2 divisors, whose sum is σ = 2102515424. Its totient is φ = 2102515422.

The previous prime is 2102515411. The next prime is 2102515427. The reversal of 2102515423 is 3245152012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102515423 - 2²⁵ = 2068960991 is a prime.

It is a super-2 number, since 2×2102515423² = 8841142207905737858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102515427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051257711 + 1051257712.

It is an arithmetic number, because the mean of its divisors is an integer number (1051257712).

Almost surely, 2^2102515423 is an apocalyptic number.

2102515423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102515423 is an equidigital number, since it uses as much as digits as its factorization.

2102515423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2102515423 is about 45853.1942507826. The cubic root of 2102515423 is about 1281.0902622892.

Adding to 2102515423 its reverse (3245152012), we get a palindrome (5347667435).

The spelling of 2102515423 in words is "two billion, one hundred two million, five hundred fifteen thousand, four hundred twenty-three".