1001423231 has 2 divisors, whose sum is σ = 1001423232. Its totient is φ = 1001423230.

The previous prime is 1001423209. The next prime is 1001423251. The reversal of 1001423231 is 1323241001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001423231 - 2¹⁸ = 1001161087 is a prime.

It is a super-2 number, since 2×1001423231² = 2005696975172958722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001423251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500711615 + 500711616.

It is an arithmetic number, because the mean of its divisors is an integer number (500711616).

Almost surely, 2^1001423231 is an apocalyptic number.

1001423231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001423231 is an equidigital number, since it uses as much as digits as its factorization.

1001423231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1001423231 is about 31645.2718585257. The cubic root of 1001423231 is about 1000.4741854460.

Adding to 1001423231 its reverse (1323241001), we get a palindrome (2324664232).

The spelling of 1001423231 in words is "one billion, one million, four hundred twenty-three thousand, two hundred thirty-one".