21131303022000 has 240 divisors, whose sum is σ = 74535342691680. Its totient is φ = 5579221440000.

The previous prime is 21131303021987. The next prime is 21131303022019. The reversal of 21131303022000 is 22030313112.

21131303022000 is a `hidden beast` number, since 2 + 1 + 131 + 30 + 302 + 200 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3993690 + ... + 7629689.

It is an arithmetic number, because the mean of its divisors is an integer number (310563927882).

Almost surely, 2^{21131303022000} is an apocalyptic number.

21131303022000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21131303022000 is an abundant number, since it is smaller than the sum of its proper divisors (53404039669680).

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

21131303022000 is a wasteful number, since it uses less digits than its factorization.

21131303022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11623509 (or 11623490 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21131303022000 its reverse (22030313112), we get a palindrome (21153333335112).

The spelling of 21131303022000 in words is "twenty-one trillion, one hundred thirty-one billion, three hundred three million, twenty-two thousand".