1232999231 has 2 divisors, whose sum is σ = 1232999232. Its totient is φ = 1232999230.

The previous prime is 1232999149. The next prime is 1232999263. The reversal of 1232999231 is 1329992321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1232999231 - 2²⁶ = 1165890367 is a prime.

It is a super-3 number, since 3×1232999231³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232992231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616499615 + 616499616.

It is an arithmetic number, because the mean of its divisors is an integer number (616499616).

Almost surely, 2^1232999231 is an apocalyptic number.

1232999231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232999231 is an equidigital number, since it uses as much as digits as its factorization.

1232999231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 41.

The square root of 1232999231 is about 35114.0887821399. The cubic root of 1232999231 is about 1072.3114299811.

It can be divided in two parts, 1 and 232999231, that added together give a palindrome (232999232).

The spelling of 1232999231 in words is "one billion, two hundred thirty-two million, nine hundred ninety-nine thousand, two hundred thirty-one".