20100002323 has 4 divisors (see below), whose sum is σ = 20287852920. Its totient is φ = 19912151728.

The previous prime is 20100002317. The next prime is 20100002357. The reversal of 20100002323 is 32320000102.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20100002323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100002303) 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, 93925138 + ... + 93925351.

It is an arithmetic number, because the mean of its divisors is an integer number (5071963230).

Almost surely, 2^20100002323 is an apocalyptic number.

20100002323 is a deficient number, since it is larger than the sum of its proper divisors (187850597).

20100002323 is a wasteful number, since it uses less digits than its factorization.

20100002323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187850596.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20100002323 its reverse (32320000102), we get a palindrome (52420002425).

The spelling of 20100002323 in words is "twenty billion, one hundred million, two thousand, three hundred twenty-three".