21142430010 has 96 divisors (see below), whose sum is σ = 59227459200. Its totient is φ = 5201771904.

The previous prime is 21142429951. The next prime is 21142430051. The reversal of 21142430010 is 1003424112.

21142430010 is a `hidden beast` number, since 211 + 424 + 30 + 0 + 1 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3913291 + ... + 3918689.

It is an arithmetic number, because the mean of its divisors is an integer number (616952700).

Almost surely, 2^21142430010 is an apocalyptic number.

21142430010 is an abundant number, since it is smaller than the sum of its proper divisors (38085029190).

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

21142430010 is a wasteful number, since it uses less digits than its factorization.

21142430010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8772 (or 8769 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21142430010 its reverse (1003424112), we get a palindrome (22145854122).

The spelling of 21142430010 in words is "twenty-one billion, one hundred forty-two million, four hundred thirty thousand, ten".