1231332007 has 2 divisors, whose sum is σ = 1231332008. Its totient is φ = 1231332006.

The previous prime is 1231332001. The next prime is 1231332013. The reversal of 1231332007 is 7002331321.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1231332001) and next prime (1231332013).

It is an emirp because it is prime and its reverse (7002331321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231332007 is a prime.

It is a super-2 number, since 2×1231332007² = 3032357022925296098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231332001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615666003 + 615666004.

It is an arithmetic number, because the mean of its divisors is an integer number (615666004).

Almost surely, 2^1231332007 is an apocalyptic number.

1231332007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231332007 is an equidigital number, since it uses as much as digits as its factorization.

1231332007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 1231332007 is about 35090.3406509541. The cubic root of 1231332007 is about 1071.8278963590.

Adding to 1231332007 its reverse (7002331321), we get a palindrome (8233663328).

The spelling of 1231332007 in words is "one billion, two hundred thirty-one million, three hundred thirty-two thousand, seven".