21333545130 has 16 divisors (see below), whose sum is σ = 51200508384. Its totient is φ = 5688945360.

The previous prime is 21333545087. The next prime is 21333545131. The reversal of 21333545130 is 3154533312.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 711118171 = 21333545130 / (2 + 1 + 3 + 3 + 3 + 5 + 4 + 5 + 1 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (21333545131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355559056 + ... + 355559115.

It is an arithmetic number, because the mean of its divisors is an integer number (3200031774).

Almost surely, 2^21333545130 is an apocalyptic number.

21333545130 is an abundant number, since it is smaller than the sum of its proper divisors (29866963254).

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

21333545130 is a wasteful number, since it uses less digits than its factorization.

21333545130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711118181.

The product of its (nonzero) digits is 16200, while the sum is 30.

The spelling of 21333545130 in words is "twenty-one billion, three hundred thirty-three million, five hundred forty-five thousand, one hundred thirty".