23040355213 has 2 divisors, whose sum is σ = 23040355214. Its totient is φ = 23040355212.

The previous prime is 23040355193. The next prime is 23040355241. The reversal of 23040355213 is 31255304032.

It is an a-pointer prime, because the next prime (23040355241) can be obtained adding 23040355213 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21829176009 + 1211179204 = 147747^2 + 34802^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23040355213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23040355243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11520177606 + 11520177607.

It is an arithmetic number, because the mean of its divisors is an integer number (11520177607).

Almost surely, 2^23040355213 is an apocalyptic number.

It is an amenable number.

23040355213 is a deficient number, since it is larger than the sum of its proper divisors (1).

23040355213 is an equidigital number, since it uses as much as digits as its factorization.

23040355213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 23040355213 its reverse (31255304032), we get a palindrome (54295659245).

The spelling of 23040355213 in words is "twenty-three billion, forty million, three hundred fifty-five thousand, two hundred thirteen".