10231210999 has 4 divisors (see below), whose sum is σ = 10251312120. Its totient is φ = 10211109880.

The previous prime is 10231210949. The next prime is 10231211017. The reversal of 10231210999 is 99901213201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10231210999 - 2¹¹ = 10231208951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231210949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10049797 + ... + 10050814.

It is an arithmetic number, because the mean of its divisors is an integer number (2562828030).

Almost surely, 2^10231210999 is an apocalyptic number.

10231210999 is a deficient number, since it is larger than the sum of its proper divisors (20101121).

10231210999 is an equidigital number, since it uses as much as digits as its factorization.

10231210999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20101120.

The product of its (nonzero) digits is 8748, while the sum is 37.

It can be divided in two parts, 102312 and 10999, that added together give a palindrome (113311).

The spelling of 10231210999 in words is "ten billion, two hundred thirty-one million, two hundred ten thousand, nine hundred ninety-nine".