123130031093 has 2 divisors, whose sum is σ = 123130031094. Its totient is φ = 123130031092.

The previous prime is 123130031083. The next prime is 123130031113. The reversal of 123130031093 is 390130031321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110261851249 + 12868179844 = 332057^2 + 113438^2 .

It is a cyclic number.

It is not a de Polignac number, because 123130031093 - 2⁶ = 123130031029 is a prime.

It is a super-2 number, since 2×123130031093² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123130031023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61565015546 + 61565015547.

It is an arithmetic number, because the mean of its divisors is an integer number (61565015547).

Almost surely, 2^123130031093 is an apocalyptic number.

It is an amenable number.

123130031093 is a deficient number, since it is larger than the sum of its proper divisors (1).

123130031093 is an equidigital number, since it uses as much as digits as its factorization.

123130031093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 26.

The spelling of 123130031093 in words is "one hundred twenty-three billion, one hundred thirty million, thirty-one thousand, ninety-three".