231233213001 has 16 divisors (see below), whose sum is σ = 364505558400. Its totient is φ = 127576944768.

The previous prime is 231233212999. The next prime is 231233213017. The reversal of 231233213001 is 100312332132.

231233213001 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 231233213001 - 2¹ = 231233212999 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 (231233213051) 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, 189846036 + ... + 189847253.

It is an arithmetic number, because the mean of its divisors is an integer number (22781597400).

Almost surely, 2^231233213001 is an apocalyptic number.

231233213001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

231233213001 is a deficient number, since it is larger than the sum of its proper divisors (133272345399).

231233213001 is a wasteful number, since it uses less digits than its factorization.

231233213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379693328.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231233213001 its reverse (100312332132), we get a palindrome (331545545133).

The spelling of 231233213001 in words is "two hundred thirty-one billion, two hundred thirty-three million, two hundred thirteen thousand, one".