21234200376 has 16 divisors (see below), whose sum is σ = 53085501000. Its totient is φ = 7078066784.

The previous prime is 21234200347. The next prime is 21234200389. The reversal of 21234200376 is 67300243212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442379151 + ... + 442379198.

Almost surely, 2^21234200376 is an apocalyptic number.

It is an amenable number.

21234200376 is an abundant number, since it is smaller than the sum of its proper divisors (31851300624).

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

21234200376 is a wasteful number, since it uses less digits than its factorization.

21234200376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884758358 (or 884758354 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

Adding to 21234200376 its reverse (67300243212), we get a palindrome (88534443588).

The spelling of 21234200376 in words is "twenty-one billion, two hundred thirty-four million, two hundred thousand, three hundred seventy-six".