133623156123 has 12 divisors (see below), whose sum is σ = 196175344768. Its totient is φ = 87621741360.

The previous prime is 133623156113. The next prime is 133623156151. The reversal of 133623156123 is 321651326331.

133623156123 is a `hidden beast` number, since 1 + 3 + 3 + 6 + 2 + 31 + 5 + 612 + 3 = 666.

It is not a de Polignac number, because 133623156123 - 2¹² = 133623152027 is a prime.

It is a super-2 number, since 2×133623156123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133623156113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121696315 + ... + 121697412.

Almost surely, 2^133623156123 is an apocalyptic number.

133623156123 is a deficient number, since it is larger than the sum of its proper divisors (62552188645).

133623156123 is a wasteful number, since it uses less digits than its factorization.

133623156123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243393794 (or 243393791 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The spelling of 133623156123 in words is "one hundred thirty-three billion, six hundred twenty-three million, one hundred fifty-six thousand, one hundred twenty-three".