201421351401233 has 4 divisors (see below), whose sum is σ = 201624602009088. Its totient is φ = 201218100793380.

The previous prime is 201421351401199. The next prime is 201421351401239. The reversal of 201421351401233 is 332104153124102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201421351401233 - 2⁶ = 201421351401169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 201421351401233.

It is not an unprimeable number, because it can be changed into a prime (201421351401239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101625302441 + ... + 101625304422.

It is an arithmetic number, because the mean of its divisors is an integer number (50406150502272).

Almost surely, 2^{201421351401233} is an apocalyptic number.

It is an amenable number.

201421351401233 is a deficient number, since it is larger than the sum of its proper divisors (203250607855).

201421351401233 is an equidigital number, since it uses as much as digits as its factorization.

201421351401233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203250607854.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 201421351401233 in words is "two hundred one trillion, four hundred twenty-one billion, three hundred fifty-one million, four hundred one thousand, two hundred thirty-three".