21033140300 has 36 divisors (see below), whose sum is σ = 47215780080. Its totient is φ = 8123142720.

The previous prime is 21033140251. The next prime is 21033140309. The reversal of 21033140300 is 304133012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21033140309) 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, 3623504 + ... + 3629303.

Almost surely, 2^21033140300 is an apocalyptic number.

21033140300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21033140300 is an abundant number, since it is smaller than the sum of its proper divisors (26182639780).

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

21033140300 is a wasteful number, since it uses less digits than its factorization.

21033140300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7252850 (or 7252843 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21033140300 its reverse (304133012), we get a palindrome (21337273312).

The spelling of 21033140300 in words is "twenty-one billion, thirty-three million, one hundred forty thousand, three hundred".