123661352501 has 8 divisors (see below), whose sum is σ = 130900550880. Its totient is φ = 116620488432.

The previous prime is 123661352467. The next prime is 123661352513. The reversal of 123661352501 is 105253166321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123661352501 - 2²⁶ = 123594243637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123661352401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49582295 + ... + 49584788.

It is an arithmetic number, because the mean of its divisors is an integer number (16362568860).

Almost surely, 2^123661352501 is an apocalyptic number.

It is an amenable number.

123661352501 is a deficient number, since it is larger than the sum of its proper divisors (7239198379).

123661352501 is an equidigital number, since it uses as much as digits as its factorization.

123661352501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99167155.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 123661352501 in words is "one hundred twenty-three billion, six hundred sixty-one million, three hundred fifty-two thousand, five hundred one".