13123305432045 has 40 divisors (see below), whose sum is σ = 23525016109056. Its totient is φ = 6999014114784.

The previous prime is 13123305432019. The next prime is 13123305432053. The reversal of 13123305432045 is 54023450332131.

13123305432045 is a `hidden beast` number, since 1 + 3 + 1 + 23 + 30 + 543 + 20 + 45 = 666.

It is not a de Polignac number, because 13123305432045 - 2¹⁵ = 13123305399277 is a prime.

It is a super-2 number, since 2×13123305432045² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52128744 + ... + 52379886.

Almost surely, 2^{13123305432045} is an apocalyptic number.

13123305432045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13123305432045 is a deficient number, since it is larger than the sum of its proper divisors (10401710677011).

13123305432045 is a wasteful number, since it uses less digits than its factorization.

13123305432045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380183 (or 380174 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 13123305432045 its reverse (54023450332131), we get a palindrome (67146755764176).

The spelling of 13123305432045 in words is "thirteen trillion, one hundred twenty-three billion, three hundred five million, four hundred thirty-two thousand, forty-five".