12321542355 has 16 divisors (see below), whose sum is σ = 19769391360. Its totient is φ = 6553181408.

The previous prime is 12321542329. The next prime is 12321542399. The reversal of 12321542355 is 55324512321.

It is a cyclic number.

It is not a de Polignac number, because 12321542355 - 2⁶ = 12321542291 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1138677 + ... + 1149446.

It is an arithmetic number, because the mean of its divisors is an integer number (1235586960).

Almost surely, 2^12321542355 is an apocalyptic number.

12321542355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12321542355 is a deficient number, since it is larger than the sum of its proper divisors (7447849005).

12321542355 is a wasteful number, since it uses less digits than its factorization.

12321542355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288490.

The product of its digits is 36000, while the sum is 33.

The spelling of 12321542355 in words is "twelve billion, three hundred twenty-one million, five hundred forty-two thousand, three hundred fifty-five".