213042421000 has 64 divisors (see below), whose sum is σ = 524757168000. Its totient is φ = 80731857600.

The previous prime is 213042420979. The next prime is 213042421061. The reversal of 213042421000 is 124240312.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 5587380 + ... + 5625379.

It is an arithmetic number, because the mean of its divisors is an integer number (8199330750).

Almost surely, 2^213042421000 is an apocalyptic number.

213042421000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213042421000 is an abundant number, since it is smaller than the sum of its proper divisors (311714747000).

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

213042421000 is a wasteful number, since it uses less digits than its factorization.

213042421000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11212799 (or 11212785 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 213042421000 its reverse (124240312), we get a palindrome (213166661312).

The spelling of 213042421000 in words is "two hundred thirteen billion, forty-two million, four hundred twenty-one thousand".