21315350214 has 24 divisors (see below), whose sum is σ = 46367265672. Its totient is φ = 7076808000.

The previous prime is 21315350201. The next prime is 21315350219. The reversal of 21315350214 is 41205351312.

21315350214 is a `hidden beast` number, since 2 + 1 + 3 + 153 + 502 + 1 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21315350219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2354419 + ... + 2363454.

It is an arithmetic number, because the mean of its divisors is an integer number (1931969403).

Almost surely, 2^21315350214 is an apocalyptic number.

21315350214 is an abundant number, since it is smaller than the sum of its proper divisors (25051915458).

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

21315350214 is a wasteful number, since it uses less digits than its factorization.

21315350214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4718132 (or 4718129 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 21315350214 in words is "twenty-one billion, three hundred fifteen million, three hundred fifty thousand, two hundred fourteen".