21357201474203 has 16 divisors (see below), whose sum is σ = 24871526006976. Its totient is φ = 17958777632640.

The previous prime is 21357201474149. The next prime is 21357201474227. The reversal of 21357201474203 is 30247410275312.

It is a cyclic number.

It is not a de Polignac number, because 21357201474203 - 2²⁸ = 21356933038747 is a prime.

It is a super-2 number, since 2×21357201474203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21357201474803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150293 + ... + 6537353.

It is an arithmetic number, because the mean of its divisors is an integer number (1554470375436).

Almost surely, 2^{21357201474203} is an apocalyptic number.

21357201474203 is a deficient number, since it is larger than the sum of its proper divisors (3514324532773).

21357201474203 is an equidigital number, since it uses as much as digits as its factorization.

21357201474203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6396134.

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 21357201474203 in words is "twenty-one trillion, three hundred fifty-seven billion, two hundred one million, four hundred seventy-four thousand, two hundred three".