21374403403371 has 8 divisors (see below), whose sum is σ = 28499226908160. Its totient is φ = 14249591083752.

The previous prime is 21374403403343. The next prime is 21374403403417. The reversal of 21374403403371 is 17330430447312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21374403403371 - 2¹³ = 21374403395179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21374403403271) 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, 4074066 + ... + 7703688.

It is an arithmetic number, because the mean of its divisors is an integer number (3562403363520).

Almost surely, 2^{21374403403371} is an apocalyptic number.

21374403403371 is a deficient number, since it is larger than the sum of its proper divisors (7124823504789).

21374403403371 is a wasteful number, since it uses less digits than its factorization.

21374403403371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5592585.

The product of its (nonzero) digits is 508032, while the sum is 42.

The spelling of 21374403403371 in words is "twenty-one trillion, three hundred seventy-four billion, four hundred three million, four hundred three thousand, three hundred seventy-one".