1230003231 has 4 divisors (see below), whose sum is σ = 1640004312. Its totient is φ = 820002152.

The previous prime is 1230003217. The next prime is 1230003241. The reversal of 1230003231 is 1323000321.

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 1230003231 - 2¹¹ = 1230001183 is a prime.

It is a super-2 number, since 2×1230003231² = 3025815896540878722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1230003231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230003241) 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, 205000536 + ... + 205000541.

It is an arithmetic number, because the mean of its divisors is an integer number (410001078).

Almost surely, 2^1230003231 is an apocalyptic number.

1230003231 is a deficient number, since it is larger than the sum of its proper divisors (410001081).

1230003231 is an equidigital number, since it uses as much as digits as its factorization.

1230003231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410001080.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1230003231 is about 35071.4018967021. The cubic root of 1230003231 is about 1071.4422078544.

Adding to 1230003231 its reverse (1323000321), we get a palindrome (2553003552).

The spelling of 1230003231 in words is "one billion, two hundred thirty million, three thousand, two hundred thirty-one".