135543031545123 has 32 divisors (see below), whose sum is σ = 210829213670400. Its totient is φ = 85943908800288.

The previous prime is 135543031545113. The next prime is 135543031545137. The reversal of 135543031545123 is 321545130345531.

135543031545123 is a `hidden beast` number, since 1 + 3 + 5 + 54 + 3 + 0 + 31 + 54 + 512 + 3 = 666.

It is not a de Polignac number, because 135543031545123 - 2⁴ = 135543031545107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135543031545113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1291793211 + ... + 1291898132.

It is an arithmetic number, because the mean of its divisors is an integer number (6588412927200).

Almost surely, 2^{135543031545123} is an apocalyptic number.

135543031545123 is a deficient number, since it is larger than the sum of its proper divisors (75286182125277).

135543031545123 is a wasteful number, since it uses less digits than its factorization.

135543031545123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583691448 (or 2583691442 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

The spelling of 135543031545123 in words is "one hundred thirty-five trillion, five hundred forty-three billion, thirty-one million, five hundred forty-five thousand, one hundred twenty-three".