321451013432 has 8 divisors (see below), whose sum is σ = 602720650200. Its totient is φ = 160725506712.

The previous prime is 321451013423. The next prime is 321451013479. The reversal of 321451013432 is 234310154123.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 321451013395 and 321451013404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20090688332 + ... + 20090688347.

It is an arithmetic number, because the mean of its divisors is an integer number (75340081275).

Almost surely, 2^321451013432 is an apocalyptic number.

It is an amenable number.

321451013432 is a deficient number, since it is larger than the sum of its proper divisors (281269636768).

321451013432 is a wasteful number, since it uses less digits than its factorization.

321451013432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40181376685 (or 40181376681 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 321451013432 its reverse (234310154123), we get a palindrome (555761167555).

The spelling of 321451013432 in words is "three hundred twenty-one billion, four hundred fifty-one million, thirteen thousand, four hundred thirty-two".