123003012031 has 2 divisors, whose sum is σ = 123003012032. Its totient is φ = 123003012030.

The previous prime is 123003012023. The next prime is 123003012113. The reversal of 123003012031 is 130210300321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123003012031 - 2³ = 123003012023 is a prime.

It is a super-2 number, since 2×123003012031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123003011996 and 123003012014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123003012631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61501506015 + 61501506016.

It is an arithmetic number, because the mean of its divisors is an integer number (61501506016).

Almost surely, 2^123003012031 is an apocalyptic number.

123003012031 is a deficient number, since it is larger than the sum of its proper divisors (1).

123003012031 is an equidigital number, since it uses as much as digits as its factorization.

123003012031 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 16.

Adding to 123003012031 its reverse (130210300321), we get a palindrome (253213312352).

The spelling of 123003012031 in words is "one hundred twenty-three billion, three million, twelve thousand, thirty-one".