21243733314 has 16 divisors (see below), whose sum is σ = 42899967552. Its totient is φ = 7012494288.

The previous prime is 21243733309. The next prime is 21243733319. The reversal of 21243733314 is 41333734212.

It is an interprime number because it is at equal distance from previous prime (21243733309) and next prime (21243733319).

It is not an unprimeable number, because it can be changed into a prime (21243733319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17186869 + ... + 17188104.

It is an arithmetic number, because the mean of its divisors is an integer number (2681247972).

Almost surely, 2^21243733314 is an apocalyptic number.

21243733314 is an abundant number, since it is smaller than the sum of its proper divisors (21656234238).

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

21243733314 is a wasteful number, since it uses less digits than its factorization.

21243733314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34375081.

The product of its digits is 36288, while the sum is 33.

The spelling of 21243733314 in words is "twenty-one billion, two hundred forty-three million, seven hundred thirty-three thousand, three hundred fourteen".