123015552551 has 8 divisors (see below), whose sum is σ = 123629425200. Its totient is φ = 122402347200.

The previous prime is 123015552521. The next prime is 123015552589. The reversal of 123015552551 is 155255510321.

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 123015552551 - 2¹⁴ = 123015536167 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 (123015552511) 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, 204851 + ... + 536651.

It is an arithmetic number, because the mean of its divisors is an integer number (15453678150).

Almost surely, 2^123015552551 is an apocalyptic number.

123015552551 is a deficient number, since it is larger than the sum of its proper divisors (613872649).

123015552551 is a wasteful number, since it uses less digits than its factorization.

123015552551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333649.

The product of its (nonzero) digits is 37500, while the sum is 35.

The spelling of 123015552551 in words is "one hundred twenty-three billion, fifteen million, five hundred fifty-two thousand, five hundred fifty-one".