231212023 has 16 divisors (see below), whose sum is σ = 271252800. Its totient is φ = 192980736.

The previous prime is 231211961. The next prime is 231212057. The reversal of 231212023 is 320212132.

It is a cyclic number.

It is not a de Polignac number, because 231212023 - 2¹⁷ = 231080951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231211988 and 231212006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231213023) 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, 48553 + ... + 53101.

It is an arithmetic number, because the mean of its divisors is an integer number (16953300).

Almost surely, 2^231212023 is an apocalyptic number.

231212023 is a deficient number, since it is larger than the sum of its proper divisors (40040777).

231212023 is a wasteful number, since it uses less digits than its factorization.

231212023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4746.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 231212023 is about 15205.6575984072. The cubic root of 231212023 is about 613.7669108211.

Adding to 231212023 its reverse (320212132), we get a palindrome (551424155).

The spelling of 231212023 in words is "two hundred thirty-one million, two hundred twelve thousand, twenty-three".