21032102000 has 160 divisors (see below), whose sum is σ = 62592077184. Its totient is φ = 6656256000.

The previous prime is 21032101963. The next prime is 21032102011. The reversal of 21032102000 is 20123012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124220 + ... + 239780.

Almost surely, 2^21032102000 is an apocalyptic number.

21032102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21032102000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31296038592).

21032102000 is an abundant number, since it is smaller than the sum of its proper divisors (41559975184).

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

21032102000 is a wasteful number, since it uses less digits than its factorization.

21032102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115604 (or 115588 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 21032102000 its reverse (20123012), we get a palindrome (21052225012).

The spelling of 21032102000 in words is "twenty-one billion, thirty-two million, one hundred two thousand".