1231442003 has 32 divisors (see below), whose sum is σ = 1441152000. Its totient is φ = 1040497920.

The previous prime is 1231441999. The next prime is 1231442027. The reversal of 1231442003 is 3002441321.

It is not a de Polignac number, because 1231442003 - 2² = 1231441999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231442083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4445501 + ... + 4445777.

It is an arithmetic number, because the mean of its divisors is an integer number (45036000).

Almost surely, 2^1231442003 is an apocalyptic number.

1231442003 is a deficient number, since it is larger than the sum of its proper divisors (209709997).

1231442003 is a wasteful number, since it uses less digits than its factorization.

1231442003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1231442003 is about 35091.9079418603. The cubic root of 1231442003 is about 1071.8598111933.

Adding to 1231442003 its reverse (3002441321), we get a palindrome (4233883324).

The spelling of 1231442003 in words is "one billion, two hundred thirty-one million, four hundred forty-two thousand, three".