2130023515 has 4 divisors (see below), whose sum is σ = 2556028224. Its totient is φ = 1704018808.

The previous prime is 2130023479. The next prime is 2130023521. The reversal of 2130023515 is 5153200312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2130023515 - 2⁹ = 2130023003 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213002347 + ... + 213002356.

It is an arithmetic number, because the mean of its divisors is an integer number (639007056).

Almost surely, 2^2130023515 is an apocalyptic number.

2130023515 is a deficient number, since it is larger than the sum of its proper divisors (426004709).

2130023515 is an equidigital number, since it uses as much as digits as its factorization.

2130023515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426004708.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2130023515 is about 46152.1777926026. The cubic root of 2130023515 is about 1286.6530860320.

Adding to 2130023515 its reverse (5153200312), we get a palindrome (7283223827).

The spelling of 2130023515 in words is "two billion, one hundred thirty million, twenty-three thousand, five hundred fifteen".