123072427269 has 32 divisors (see below), whose sum is σ = 205321236480. Its totient is φ = 72183236400.

The previous prime is 123072427267. The next prime is 123072427343. The reversal of 123072427269 is 962724270321.

123072427269 is a `hidden beast` number, since 12 + 307 + 2 + 4 + 272 + 69 = 666.

It is not a de Polignac number, because 123072427269 - 2¹ = 123072427267 is a prime.

It is a super-2 number, since 2×123072427269² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123072427267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6674427 + ... + 6692840.

It is an arithmetic number, because the mean of its divisors is an integer number (6416288640).

Almost surely, 2^123072427269 is an apocalyptic number.

It is an amenable number.

123072427269 is a deficient number, since it is larger than the sum of its proper divisors (82248809211).

123072427269 is a wasteful number, since it uses less digits than its factorization.

123072427269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13367318 (or 13367312 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 123072427269 in words is "one hundred twenty-three billion, seventy-two million, four hundred twenty-seven thousand, two hundred sixty-nine".