21032300120 has 48 divisors (see below), whose sum is σ = 51242913360. Its totient is φ = 7765769856.

The previous prime is 21032300099. The next prime is 21032300123. The reversal of 21032300120 is 2100323012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21032300095 and 21032300104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032300123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1548884 + ... + 1562403.

It is an arithmetic number, because the mean of its divisors is an integer number (1067560695).

Almost surely, 2^21032300120 is an apocalyptic number.

21032300120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21032300120 is an abundant number, since it is smaller than the sum of its proper divisors (30210613240).

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

21032300120 is a wasteful number, since it uses less digits than its factorization.

21032300120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111324 (or 3111307 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21032300120 its reverse (2100323012), we get a palindrome (23132623132).

The spelling of 21032300120 in words is "twenty-one billion, thirty-two million, three hundred thousand, one hundred twenty".