123200000069 has 2 divisors, whose sum is σ = 123200000070. Its totient is φ = 123200000068.

The previous prime is 123200000003. The next prime is 123200000141. The reversal of 123200000069 is 960000002321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106757067169 + 16442932900 = 326737^2 + 128230^2 .

It is a cyclic number.

It is not a de Polignac number, because 123200000069 - 2³⁶ = 54480523333 is a prime.

It is a super-2 number, since 2×123200000069² (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 (123200000969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61600000034 + 61600000035.

It is an arithmetic number, because the mean of its divisors is an integer number (61600000035).

Almost surely, 2^123200000069 is an apocalyptic number.

It is an amenable number.

123200000069 is a deficient number, since it is larger than the sum of its proper divisors (1).

123200000069 is an equidigital number, since it uses as much as digits as its factorization.

123200000069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The spelling of 123200000069 in words is "one hundred twenty-three billion, two hundred million, sixty-nine", and thus it is an aban number.