23203120313 has 8 divisors (see below), whose sum is σ = 24272929800. Its totient is φ = 22151291008.

The previous prime is 23203120309. The next prime is 23203120363. The reversal of 23203120313 is 31302130232.

It can be written as a sum of positive squares in 4 ways, for example, as 112190464 + 23090929849 = 10592^2 + 151957^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23203120313 - 2² = 23203120309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23203120363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4492406 + ... + 4497567.

It is an arithmetic number, because the mean of its divisors is an integer number (3034116225).

Almost surely, 2^23203120313 is an apocalyptic number.

It is an amenable number.

23203120313 is a deficient number, since it is larger than the sum of its proper divisors (1069809487).

23203120313 is an equidigital number, since it uses as much as digits as its factorization.

23203120313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8990091.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23203120313 its reverse (31302130232), we get a palindrome (54505250545).

The spelling of 23203120313 in words is "twenty-three billion, two hundred three million, one hundred twenty thousand, three hundred thirteen".