123102331123 has 2 divisors, whose sum is σ = 123102331124. Its totient is φ = 123102331122.

The previous prime is 123102331103. The next prime is 123102331133. The reversal of 123102331123 is 321133201321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123102331123 is a prime.

It is a super-2 number, since 2×123102331123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123102331094 and 123102331103.

It is not a weakly prime, because it can be changed into another prime (123102331103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61551165561 + 61551165562.

It is an arithmetic number, because the mean of its divisors is an integer number (61551165562).

Almost surely, 2^123102331123 is an apocalyptic number.

123102331123 is a deficient number, since it is larger than the sum of its proper divisors (1).

123102331123 is an equidigital number, since it uses as much as digits as its factorization.

123102331123 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 22.

Adding to 123102331123 its reverse (321133201321), we get a palindrome (444235532444).

The spelling of 123102331123 in words is "one hundred twenty-three billion, one hundred two million, three hundred thirty-one thousand, one hundred twenty-three".