123133109445 has 192 divisors, whose sum is σ = 241532928000. Its totient is φ = 59944375296.

The previous prime is 123133109443. The next prime is 123133109447. The reversal of 123133109445 is 544901331321.

123133109445 is a `hidden beast` number, since 1 + 231 + 331 + 0 + 94 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (123133109443) and next prime (123133109447).

It is not a de Polignac number, because 123133109445 - 2¹ = 123133109443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123133109443) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 96272316 + ... + 96273594.

It is an arithmetic number, because the mean of its divisors is an integer number (1257984000).

Almost surely, 2^123133109445 is an apocalyptic number.

123133109445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123133109445 is a deficient number, since it is larger than the sum of its proper divisors (118399818555).

123133109445 is a wasteful number, since it uses less digits than its factorization.

123133109445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 123133109445 in words is "one hundred twenty-three billion, one hundred thirty-three million, one hundred nine thousand, four hundred forty-five".