123512415311 has 2 divisors, whose sum is σ = 123512415312. Its totient is φ = 123512415310.

The previous prime is 123512415307. The next prime is 123512415317. The reversal of 123512415311 is 113514215321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123512415311 - 2² = 123512415307 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123512415317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61756207655 + 61756207656.

It is an arithmetic number, because the mean of its divisors is an integer number (61756207656).

Almost surely, 2^123512415311 is an apocalyptic number.

123512415311 is a deficient number, since it is larger than the sum of its proper divisors (1).

123512415311 is an equidigital number, since it uses as much as digits as its factorization.

123512415311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 29.

The spelling of 123512415311 in words is "one hundred twenty-three billion, five hundred twelve million, four hundred fifteen thousand, three hundred eleven".