21133001130 has 32 divisors (see below), whose sum is σ = 50746445568. Its totient is φ = 5632440000.

The previous prime is 21133001129. The next prime is 21133001179. The reversal of 21133001130 is 3110033112.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 132121 + ... + 244380.

It is an arithmetic number, because the mean of its divisors is an integer number (1585826424).

Almost surely, 2^21133001130 is an apocalyptic number.

21133001130 is an abundant number, since it is smaller than the sum of its proper divisors (29613444438).

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

21133001130 is a wasteful number, since it uses less digits than its factorization.

21133001130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378382.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21133001130 its reverse (3110033112), we get a palindrome (24243034242).

The spelling of 21133001130 in words is "twenty-one billion, one hundred thirty-three million, one thousand, one hundred thirty".