123545551334101 has 16 divisors (see below), whose sum is σ = 136326454298496. Its totient is φ = 111239987253696.

The previous prime is 123545551334063. The next prime is 123545551334111. The reversal of 123545551334101 is 101433155545321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123545551334101 - 2²³ = 123545542945493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123545551334111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148313950 + ... + 149144623.

It is an arithmetic number, because the mean of its divisors is an integer number (8520403393656).

Almost surely, 2^{123545551334101} is an apocalyptic number.

It is an amenable number.

123545551334101 is a deficient number, since it is larger than the sum of its proper divisors (12780902964395).

123545551334101 is a wasteful number, since it uses less digits than its factorization.

123545551334101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297459372.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 123545551334101 in words is "one hundred twenty-three trillion, five hundred forty-five billion, five hundred fifty-one million, three hundred thirty-four thousand, one hundred one".