1003431213 has 16 divisors (see below), whose sum is σ = 1487189760. Its totient is φ = 668672928.

The previous prime is 1003431199. The next prime is 1003431217. The reversal of 1003431213 is 3121343001.

It is not a de Polignac number, because 1003431213 - 2¹⁶ = 1003365677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003431217) 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, 72681 + ... + 85377.

It is an arithmetic number, because the mean of its divisors is an integer number (92949360).

Almost surely, 2^1003431213 is an apocalyptic number.

It is an amenable number.

1003431213 is a deficient number, since it is larger than the sum of its proper divisors (483758547).

1003431213 is a wasteful number, since it uses less digits than its factorization.

1003431213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15633 (or 15627 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1003431213 is about 31676.9823846906. The cubic root of 1003431213 is about 1001.1424320187.

Adding to 1003431213 its reverse (3121343001), we get a palindrome (4124774214).

The spelling of 1003431213 in words is "one billion, three million, four hundred thirty-one thousand, two hundred thirteen".