23311243331 has 2 divisors, whose sum is σ = 23311243332. Its totient is φ = 23311243330.

The previous prime is 23311243303. The next prime is 23311243343. The reversal of 23311243331 is 13334211332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23311243331 - 2¹⁰ = 23311242307 is a prime.

It is a super-2 number, since 2×23311243331² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23311243331.

It is not a weakly prime, because it can be changed into another prime (23311246331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11655621665 + 11655621666.

It is an arithmetic number, because the mean of its divisors is an integer number (11655621666).

Almost surely, 2^23311243331 is an apocalyptic number.

23311243331 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311243331 is an equidigital number, since it uses as much as digits as its factorization.

23311243331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 26.

Adding to 23311243331 its reverse (13334211332), we get a palindrome (36645454663).

The spelling of 23311243331 in words is "twenty-three billion, three hundred eleven million, two hundred forty-three thousand, three hundred thirty-one".