123166340153 has 2 divisors, whose sum is σ = 123166340154. Its totient is φ = 123166340152.

The previous prime is 123166340149. The next prime is 123166340189. The reversal of 123166340153 is 351043661321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123164498704 + 1841449 = 350948^2 + 1357^2 .

It is a cyclic number.

It is not a de Polignac number, because 123166340153 - 2² = 123166340149 is a prime.

It is not a weakly prime, because it can be changed into another prime (123166346153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61583170076 + 61583170077.

It is an arithmetic number, because the mean of its divisors is an integer number (61583170077).

Almost surely, 2^123166340153 is an apocalyptic number.

It is an amenable number.

123166340153 is a deficient number, since it is larger than the sum of its proper divisors (1).

123166340153 is an equidigital number, since it uses as much as digits as its factorization.

123166340153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 123166340153 in words is "one hundred twenty-three billion, one hundred sixty-six million, three hundred forty thousand, one hundred fifty-three".