123057103181 has 2 divisors, whose sum is σ = 123057103182. Its totient is φ = 123057103180.

The previous prime is 123057103151. The next prime is 123057103207. The reversal of 123057103181 is 181301750321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113518455625 + 9538647556 = 336925^2 + 97666^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123057103181 is a prime.

It is a super-2 number, since 2×123057103181² (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 (123057103151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61528551590 + 61528551591.

It is an arithmetic number, because the mean of its divisors is an integer number (61528551591).

Almost surely, 2^123057103181 is an apocalyptic number.

It is an amenable number.

123057103181 is a deficient number, since it is larger than the sum of its proper divisors (1).

123057103181 is an equidigital number, since it uses as much as digits as its factorization.

123057103181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The spelling of 123057103181 in words is "one hundred twenty-three billion, fifty-seven million, one hundred three thousand, one hundred eighty-one".