123130033109 has 2 divisors, whose sum is σ = 123130033110. Its totient is φ = 123130033108.

The previous prime is 123130033093. The next prime is 123130033141. The reversal of 123130033109 is 901330031321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123081688900 + 48344209 = 350830^2 + 6953^2 .

It is a cyclic number.

It is not a de Polignac number, because 123130033109 - 2⁴ = 123130033093 is a prime.

It is a super-2 number, since 2×123130033109² (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 (123130033909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61565016554 + 61565016555.

It is an arithmetic number, because the mean of its divisors is an integer number (61565016555).

Almost surely, 2^123130033109 is an apocalyptic number.

It is an amenable number.

123130033109 is a deficient number, since it is larger than the sum of its proper divisors (1).

123130033109 is an equidigital number, since it uses as much as digits as its factorization.

123130033109 is an evil number, because the sum of its binary digits is even.

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

The spelling of 123130033109 in words is "one hundred twenty-three billion, one hundred thirty million, thirty-three thousand, one hundred nine".