2100515323 has 4 divisors (see below), whose sum is σ = 2101574440. Its totient is φ = 2099456208.

The previous prime is 2100515293. The next prime is 2100515363. The reversal of 2100515323 is 3235150012.

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 2100515323 - 2²⁵ = 2066960891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100515294 and 2100515303.

It is not an unprimeable number, because it can be changed into a prime (2100515363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526578 + ... + 530551.

It is an arithmetic number, because the mean of its divisors is an integer number (525393610).

Almost surely, 2^2100515323 is an apocalyptic number.

2100515323 is a deficient number, since it is larger than the sum of its proper divisors (1059117).

2100515323 is a wasteful number, since it uses less digits than its factorization.

2100515323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059116.

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

The square root of 2100515323 is about 45831.3792395559. The cubic root of 2100515323 is about 1280.6839043407.

Adding to 2100515323 its reverse (3235150012), we get a palindrome (5335665335).

The spelling of 2100515323 in words is "two billion, one hundred million, five hundred fifteen thousand, three hundred twenty-three".