1003121142 has 32 divisors (see below), whose sum is σ = 2164348512. Its totient is φ = 308765184.

The previous prime is 1003121117. The next prime is 1003121173. The reversal of 1003121142 is 2411213001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87373 + ... + 98184.

It is an arithmetic number, because the mean of its divisors is an integer number (67635891).

Almost surely, 2^1003121142 is an apocalyptic number.

1003121142 is an abundant number, since it is smaller than the sum of its proper divisors (1161227370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1003121142 is a wasteful number, since it uses less digits than its factorization.

1003121142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185632.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1003121142 is about 31672.0877429954. The cubic root of 1003121142 is about 1001.0393001477.

Adding to 1003121142 its reverse (2411213001), we get a palindrome (3414334143).

The spelling of 1003121142 in words is "one billion, three million, one hundred twenty-one thousand, one hundred forty-two".