21140303334 has 32 divisors (see below), whose sum is σ = 43423015680. Its totient is φ = 6858732000.

The previous prime is 21140303299. The next prime is 21140303357. The reversal of 21140303334 is 43330304112.

It is a congruent number.

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, 259882 + ... + 331389.

It is an arithmetic number, because the mean of its divisors is an integer number (1356969240).

Almost surely, 2^21140303334 is an apocalyptic number.

21140303334 is an abundant number, since it is smaller than the sum of its proper divisors (22282712346).

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

21140303334 is a wasteful number, since it uses less digits than its factorization.

21140303334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591436.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21140303334 its reverse (43330304112), we get a palindrome (64470607446).

The spelling of 21140303334 in words is "twenty-one billion, one hundred forty million, three hundred three thousand, three hundred thirty-four".