201324031421 has 16 divisors (see below), whose sum is σ = 205777091520. Its totient is φ = 196907030400.

The previous prime is 201324031409. The next prime is 201324031427. The reversal of 201324031421 is 124130423102.

It is a cyclic number.

It is not a de Polignac number, because 201324031421 - 2¹⁸ = 201323769277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201324031427) 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, 19941851 + ... + 19951943.

It is an arithmetic number, because the mean of its divisors is an integer number (12861068220).

Almost surely, 2^201324031421 is an apocalyptic number.

It is an amenable number.

201324031421 is a deficient number, since it is larger than the sum of its proper divisors (4453060099).

201324031421 is a wasteful number, since it uses less digits than its factorization.

201324031421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11836.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 201324031421 its reverse (124130423102), we get a palindrome (325454454523).

The spelling of 201324031421 in words is "two hundred one billion, three hundred twenty-four million, thirty-one thousand, four hundred twenty-one".