123101231311 has 2 divisors, whose sum is σ = 123101231312. Its totient is φ = 123101231310.

The previous prime is 123101231269. The next prime is 123101231321. The reversal of 123101231311 is 113132101321.

It is a strong prime.

It is an emirp because it is prime and its reverse (113132101321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123101231311 - 2¹¹ = 123101229263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123101231321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61550615655 + 61550615656.

It is an arithmetic number, because the mean of its divisors is an integer number (61550615656).

Almost surely, 2^123101231311 is an apocalyptic number.

123101231311 is a deficient number, since it is larger than the sum of its proper divisors (1).

123101231311 is an equidigital number, since it uses as much as digits as its factorization.

123101231311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 123101231311 its reverse (113132101321), we get a palindrome (236233332632).

The spelling of 123101231311 in words is "one hundred twenty-three billion, one hundred one million, two hundred thirty-one thousand, three hundred eleven".