123000031127 has 2 divisors, whose sum is σ = 123000031128. Its totient is φ = 123000031126.

The previous prime is 123000031117. The next prime is 123000031139. The reversal of 123000031127 is 721130000321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123000031127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123000031099 and 123000031108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123000031117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61500015563 + 61500015564.

It is an arithmetic number, because the mean of its divisors is an integer number (61500015564).

Almost surely, 2^123000031127 is an apocalyptic number.

123000031127 is a deficient number, since it is larger than the sum of its proper divisors (1).

123000031127 is an equidigital number, since it uses as much as digits as its factorization.

123000031127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

Adding to 123000031127 its reverse (721130000321), we get a palindrome (844130031448).

The spelling of 123000031127 in words is "one hundred twenty-three billion, thirty-one thousand, one hundred twenty-seven".