121555362623 has 8 divisors (see below), whose sum is σ = 122338626048. Its totient is φ = 120772557144.

The previous prime is 121555362619. The next prime is 121555362637. The reversal of 121555362623 is 326263555121.

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 121555362623 - 2² = 121555362619 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 (121555362653) 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, 426290 + ... + 651792.

It is an arithmetic number, because the mean of its divisors is an integer number (15292328256).

Almost surely, 2^121555362623 is an apocalyptic number.

121555362623 is a deficient number, since it is larger than the sum of its proper divisors (783263425).

121555362623 is a wasteful number, since it uses less digits than its factorization.

121555362623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228973.

The product of its digits is 324000, while the sum is 41.

The spelling of 121555362623 in words is "one hundred twenty-one billion, five hundred fifty-five million, three hundred sixty-two thousand, six hundred twenty-three".