21142034030 has 32 divisors (see below), whose sum is σ = 41936124384. Its totient is φ = 7624745856.

The previous prime is 21142034029. The next prime is 21142034107. The reversal of 21142034030 is 3043024112.

21142034030 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 21142033993 and 21142034011.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1885469 + ... + 1896648.

It is an arithmetic number, because the mean of its divisors is an integer number (1310503887).

Almost surely, 2^21142034030 is an apocalyptic number.

21142034030 is a deficient number, since it is larger than the sum of its proper divisors (20794090354).

21142034030 is a wasteful number, since it uses less digits than its factorization.

21142034030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3782180.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21142034030 its reverse (3043024112), we get a palindrome (24185058142).

The spelling of 21142034030 in words is "twenty-one billion, one hundred forty-two million, thirty-four thousand, thirty".