321201153123432 has 128 divisors (see below), whose sum is σ = 820450088640000. Its totient is φ = 104765860970496.

The previous prime is 321201153123377. The next prime is 321201153123443. The reversal of 321201153123432 is 234321351102123.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 321201153123393 and 321201153123402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3928112244 + ... + 3928194012.

It is an arithmetic number, because the mean of its divisors is an integer number (6409766317500).

Almost surely, 2^{321201153123432} is an apocalyptic number.

It is an amenable number.

321201153123432 is an abundant number, since it is smaller than the sum of its proper divisors (499248935516568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321201153123432 is a wasteful number, since it uses less digits than its factorization.

321201153123432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100923 (or 100919 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 321201153123432 in words is "three hundred twenty-one trillion, two hundred one billion, one hundred fifty-three million, one hundred twenty-three thousand, four hundred thirty-two".