123311013247 has 2 divisors, whose sum is σ = 123311013248. Its totient is φ = 123311013246.

The previous prime is 123311013211. The next prime is 123311013253. The reversal of 123311013247 is 742310113321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123311013247 - 2²⁷ = 123176795519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123311013547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61655506623 + 61655506624.

It is an arithmetic number, because the mean of its divisors is an integer number (61655506624).

Almost surely, 2^123311013247 is an apocalyptic number.

123311013247 is a deficient number, since it is larger than the sum of its proper divisors (1).

123311013247 is an equidigital number, since it uses as much as digits as its factorization.

123311013247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 123311013247 its reverse (742310113321), we get a palindrome (865621126568).

The spelling of 123311013247 in words is "one hundred twenty-three billion, three hundred eleven million, thirteen thousand, two hundred forty-seven".