23240411311511 has 2 divisors, whose sum is σ = 23240411311512. Its totient is φ = 23240411311510.

The previous prime is 23240411311501. The next prime is 23240411311561. The reversal of 23240411311511 is 11511311404232.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23240411311511 is a prime.

It is a super-2 number, since 2×23240411311511² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23240411311501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11620205655755 + 11620205655756.

It is an arithmetic number, because the mean of its divisors is an integer number (11620205655756).

Almost surely, 2^{23240411311511} is an apocalyptic number.

23240411311511 is a deficient number, since it is larger than the sum of its proper divisors (1).

23240411311511 is an equidigital number, since it uses as much as digits as its factorization.

23240411311511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 23240411311511 its reverse (11511311404232), we get a palindrome (34751722715743).

The spelling of 23240411311511 in words is "twenty-three trillion, two hundred forty billion, four hundred eleven million, three hundred eleven thousand, five hundred eleven".