21343366402 has 4 divisors (see below), whose sum is σ = 32015049606. Its totient is φ = 10671683200.

The previous prime is 21343366393. The next prime is 21343366411. The reversal of 21343366402 is 20466334312.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (21343366393) and next prime (21343366411).

It can be written as a sum of positive squares in only one way, i.e., 18708494841 + 2634871561 = 136779^2 + 51331^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5335841599 + ... + 5335841602.

Almost surely, 2^21343366402 is an apocalyptic number.

21343366402 is a deficient number, since it is larger than the sum of its proper divisors (10671683204).

21343366402 is a wasteful number, since it uses less digits than its factorization.

21343366402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10671683203.

The product of its (nonzero) digits is 62208, while the sum is 34.

The spelling of 21343366402 in words is "twenty-one billion, three hundred forty-three million, three hundred sixty-six thousand, four hundred two".