1011231003 has 8 divisors (see below), whose sum is σ = 1348627968. Its totient is φ = 673994024.

The previous prime is 1011230993. The next prime is 1011231017. The reversal of 1011231003 is 3001321101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011231003 - 2⁵ = 1011230971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011231003.

It is not an unprimeable number, because it can be changed into a prime (1011231103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24375 + ... + 51152.

It is an arithmetic number, because the mean of its divisors is an integer number (168578496).

Almost surely, 2^1011231003 is an apocalyptic number.

1011231003 is a deficient number, since it is larger than the sum of its proper divisors (337396965).

1011231003 is an equidigital number, since it uses as much as digits as its factorization.

1011231003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79993.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1011231003 is about 31799.8585374212. The cubic root of 1011231003 is about 1003.7297394158.

Adding to 1011231003 its reverse (3001321101), we get a palindrome (4012552104).

The spelling of 1011231003 in words is "one billion, eleven million, two hundred thirty-one thousand, three".