1003142121 has 16 divisors (see below), whose sum is σ = 1372197120. Its totient is φ = 651473280.

The previous prime is 1003142111. The next prime is 1003142143. The reversal of 1003142121 is 1212413001.

It is not a de Polignac number, because 1003142121 - 2⁵ = 1003142089 is a prime.

It is a super-2 number, since 2×1003142121² = 2012588229848757282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1003142121.

It is not an unprimeable number, because it can be changed into a prime (1003142111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81456 + ... + 92958.

It is an arithmetic number, because the mean of its divisors is an integer number (85762320).

Almost surely, 2^1003142121 is an apocalyptic number.

It is an amenable number.

1003142121 is a deficient number, since it is larger than the sum of its proper divisors (369054999).

1003142121 is a wasteful number, since it uses less digits than its factorization.

1003142121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12256.

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

The square root of 1003142121 is about 31672.4189319351. The cubic root of 1003142121 is about 1001.0462785860.

Adding to 1003142121 its reverse (1212413001), we get a palindrome (2215555122).

The spelling of 1003142121 in words is "one billion, three million, one hundred forty-two thousand, one hundred twenty-one".