123700144465 has 4 divisors (see below), whose sum is σ = 148440173364. Its totient is φ = 98960115568.

The previous prime is 123700144459. The next prime is 123700144487. The reversal of 123700144465 is 564441007321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24972848784 + 98727295681 = 158028^2 + 314209^2 .

It is a cyclic number.

It is not a de Polignac number, because 123700144465 - 2³ = 123700144457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12370014442 + ... + 12370014451.

It is an arithmetic number, because the mean of its divisors is an integer number (37110043341).

Almost surely, 2^123700144465 is an apocalyptic number.

It is an amenable number.

123700144465 is a deficient number, since it is larger than the sum of its proper divisors (24740028899).

123700144465 is an equidigital number, since it uses as much as digits as its factorization.

123700144465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24740028898.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 123700144465 in words is "one hundred twenty-three billion, seven hundred million, one hundred forty-four thousand, four hundred sixty-five".