13112440315123 has 2 divisors, whose sum is σ = 13112440315124. Its totient is φ = 13112440315122.

The previous prime is 13112440315063. The next prime is 13112440315147. The reversal of 13112440315123 is 32151304421131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13112440315123 is a prime.

It is not a weakly prime, because it can be changed into another prime (13112440315423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556220157561 + 6556220157562.

It is an arithmetic number, because the mean of its divisors is an integer number (6556220157562).

Almost surely, 2^{13112440315123} is an apocalyptic number.

13112440315123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13112440315123 is an equidigital number, since it uses as much as digits as its factorization.

13112440315123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 13112440315123 its reverse (32151304421131), we get a palindrome (45263744736254).

The spelling of 13112440315123 in words is "thirteen trillion, one hundred twelve billion, four hundred forty million, three hundred fifteen thousand, one hundred twenty-three".