1002103231 has 4 divisors (see below), whose sum is σ = 1002572992. Its totient is φ = 1001633472.

The previous prime is 1002103213. The next prime is 1002103273. The reversal of 1002103231 is 1323012001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1323012001 = 3583 ⋅369247.

It is a cyclic number.

It is not a de Polignac number, because 1002103231 - 2¹⁷ = 1001972159 is a prime.

It is a super-2 number, since 2×1002103231² = 2008421771161278722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002103831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231666 + ... + 235951.

It is an arithmetic number, because the mean of its divisors is an integer number (250643248).

Almost surely, 2^1002103231 is an apocalyptic number.

1002103231 is a deficient number, since it is larger than the sum of its proper divisors (469761).

1002103231 is an equidigital number, since it uses as much as digits as its factorization.

1002103231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469760.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1002103231 is about 31656.0141363375. The cubic root of 1002103231 is about 1000.7005860645.

Adding to 1002103231 its reverse (1323012001), we get a palindrome (2325115232).

The spelling of 1002103231 in words is "one billion, two million, one hundred three thousand, two hundred thirty-one".