231002028201 has 16 divisors (see below), whose sum is σ = 352016630784. Its totient is φ = 131996081424.

The previous prime is 231002028197. The next prime is 231002028209. The reversal of 231002028201 is 102820200132.

It is a happy number.

231002028201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231002028201 - 2² = 231002028197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (231002028209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386716 + ... + 782018.

It is an arithmetic number, because the mean of its divisors is an integer number (22001039424).

Almost surely, 2^231002028201 is an apocalyptic number.

231002028201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

231002028201 is a deficient number, since it is larger than the sum of its proper divisors (121014602583).

231002028201 is a wasteful number, since it uses less digits than its factorization.

231002028201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423140.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 231002028201 its reverse (102820200132), we get a palindrome (333822228333).

The spelling of 231002028201 in words is "two hundred thirty-one billion, two million, twenty-eight thousand, two hundred one".