2100321403432 has 64 divisors (see below), whose sum is σ = 4626740160000. Its totient is φ = 874973892096.

The previous prime is 2100321403417. The next prime is 2100321403513. The reversal of 2100321403432 is 2343041230012.

It is a super-2 number, since 2×2100321403432² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2100321403397 and 2100321403406.

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, 1690369 + ... + 2656687.

It is an arithmetic number, because the mean of its divisors is an integer number (72292815000).

Almost surely, 2^{2100321403432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100321403432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2313370080000).

2100321403432 is an abundant number, since it is smaller than the sum of its proper divisors (2526418756568).

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

2100321403432 is a wasteful number, since it uses less digits than its factorization.

2100321403432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967418 (or 967414 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 2100321403432 its reverse (2343041230012), we get a palindrome (4443362633444).

The spelling of 2100321403432 in words is "two trillion, one hundred billion, three hundred twenty-one million, four hundred three thousand, four hundred thirty-two".