21000232234 has 16 divisors (see below), whose sum is σ = 32046890400. Its totient is φ = 10318684464.

The previous prime is 21000232223. The next prime is 21000232247. The reversal of 21000232234 is 43223200012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130869 + ... + 243160.

It is an arithmetic number, because the mean of its divisors is an integer number (2002930650).

Almost surely, 2^21000232234 is an apocalyptic number.

21000232234 is a deficient number, since it is larger than the sum of its proper divisors (11046658166).

21000232234 is a wasteful number, since it uses less digits than its factorization.

21000232234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374517.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21000232234 its reverse (43223200012), we get a palindrome (64223432246).

The spelling of 21000232234 in words is "twenty-one billion, two hundred thirty-two thousand, two hundred thirty-four".