23203311013 has 8 divisors (see below), whose sum is σ = 23697286776. Its totient is φ = 22711416000.

The previous prime is 23203310957. The next prime is 23203311031. The reversal of 23203311013 is 31011330232.

It can be written as a sum of positive squares in 4 ways, for example, as 329168449 + 22874142564 = 18143^2 + 151242^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23203311013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23203311073) 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, 497638 + ... + 542263.

It is an arithmetic number, because the mean of its divisors is an integer number (2962160847).

Almost surely, 2^23203311013 is an apocalyptic number.

It is an amenable number.

23203311013 is a deficient number, since it is larger than the sum of its proper divisors (493975763).

23203311013 is a wasteful number, since it uses less digits than its factorization.

23203311013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040375.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 23203311013 its reverse (31011330232), we get a palindrome (54214641245).

The spelling of 23203311013 in words is "twenty-three billion, two hundred three million, three hundred eleven thousand, thirteen".