1001230903 has 2 divisors, whose sum is σ = 1001230904. Its totient is φ = 1001230902.

The previous prime is 1001230883. The next prime is 1001230907. The reversal of 1001230903 is 3090321001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001230903 - 2¹³ = 1001222711 is a prime.

It is a super-2 number, since 2×1001230903² = 2004926642244390818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001230907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500615451 + 500615452.

It is an arithmetic number, because the mean of its divisors is an integer number (500615452).

Almost surely, 2^1001230903 is an apocalyptic number.

1001230903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001230903 is an equidigital number, since it uses as much as digits as its factorization.

1001230903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1001230903 is about 31642.2329016143. The cubic root of 1001230903 is about 1000.4101327681.

Adding to 1001230903 its reverse (3090321001), we get a palindrome (4091551904).

The spelling of 1001230903 in words is "one billion, one million, two hundred thirty thousand, nine hundred three".