21130142000 has 320 divisors, whose sum is σ = 57716305920. Its totient is φ = 7416576000.

The previous prime is 21130141987. The next prime is 21130142009. The reversal of 21130142000 is 24103112.

It is not an unprimeable number, because it can be changed into a prime (21130142009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94753889 + ... + 94754111.

It is an arithmetic number, because the mean of its divisors is an integer number (180363456).

Almost surely, 2^21130142000 is an apocalyptic number.

21130142000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21130142000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28858152960).

21130142000 is an abundant number, since it is smaller than the sum of its proper divisors (36586163920).

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

21130142000 is a wasteful number, since it uses less digits than its factorization.

21130142000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21130142000 its reverse (24103112), we get a palindrome (21154245112).

The spelling of 21130142000 in words is "twenty-one billion, one hundred thirty million, one hundred forty-two thousand".