123231121131103 has 2 divisors, whose sum is σ = 123231121131104. Its totient is φ = 123231121131102.

The previous prime is 123231121130983. The next prime is 123231121131113. The reversal of 123231121131103 is 301131121132321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123231121131103 - 2⁹ = 123231121130591 is a prime.

It is a super-2 number, since 2×123231121131103² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123231121131113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615560565551 + 61615560565552.

It is an arithmetic number, because the mean of its divisors is an integer number (61615560565552).

Almost surely, 2^{123231121131103} is an apocalyptic number.

123231121131103 is a deficient number, since it is larger than the sum of its proper divisors (1).

123231121131103 is an equidigital number, since it uses as much as digits as its factorization.

123231121131103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 123231121131103 its reverse (301131121132321), we get a palindrome (424362242263424).

The spelling of 123231121131103 in words is "one hundred twenty-three trillion, two hundred thirty-one billion, one hundred twenty-one million, one hundred thirty-one thousand, one hundred three".