202121330231 has 8 divisors (see below), whose sum is σ = 212768266800. Its totient is φ = 191475290880.

The previous prime is 202121330219. The next prime is 202121330233. The reversal of 202121330231 is 132033121202.

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

It is a cyclic number.

It is not a de Polignac number, because 202121330231 - 2¹⁴ = 202121313847 is a prime.

It is a super-2 number, since 2×202121330231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202121330233) 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, 265565 + ... + 689033.

It is an arithmetic number, because the mean of its divisors is an integer number (26596033350).

Almost surely, 2^202121330231 is an apocalyptic number.

202121330231 is a deficient number, since it is larger than the sum of its proper divisors (10646936569).

202121330231 is a wasteful number, since it uses less digits than its factorization.

202121330231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448609.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 202121330231 its reverse (132033121202), we get a palindrome (334154451433).

The spelling of 202121330231 in words is "two hundred two billion, one hundred twenty-one million, three hundred thirty thousand, two hundred thirty-one".