231452201020 has 48 divisors (see below), whose sum is σ = 502875021600. Its totient is φ = 89376869120.

The previous prime is 231452200951. The next prime is 231452201039. The reversal of 231452201020 is 20102254132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 231452200982 and 231452201000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5466291 + ... + 5508469.

It is an arithmetic number, because the mean of its divisors is an integer number (10476562950).

Almost surely, 2^231452201020 is an apocalyptic number.

231452201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231452201020 is an abundant number, since it is smaller than the sum of its proper divisors (271422820580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231452201020 is a wasteful number, since it uses less digits than its factorization.

231452201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51678 (or 51676 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 231452201020 its reverse (20102254132), we get a palindrome (251554455152).

The spelling of 231452201020 in words is "two hundred thirty-one billion, four hundred fifty-two million, two hundred one thousand, twenty".