20313200233 has 4 divisors (see below), whose sum is σ = 20352040528. Its totient is φ = 20274359940.

The previous prime is 20313200221. The next prime is 20313200239. The reversal of 20313200233 is 33200231302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20313200233 - 2¹³ = 20313192041 is a prime.

It is a super-2 number, since 2×20313200233² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20313200233.

It is not an unprimeable number, because it can be changed into a prime (20313200239) 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, 19419363 + ... + 19420408.

It is an arithmetic number, because the mean of its divisors is an integer number (5088010132).

Almost surely, 2^20313200233 is an apocalyptic number.

It is an amenable number.

20313200233 is a deficient number, since it is larger than the sum of its proper divisors (38840295).

20313200233 is an equidigital number, since it uses as much as digits as its factorization.

20313200233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38840294.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20313200233 its reverse (33200231302), we get a palindrome (53513431535).

The spelling of 20313200233 in words is "twenty billion, three hundred thirteen million, two hundred thousand, two hundred thirty-three".