1031303213 has 4 divisors (see below), whose sum is σ = 1032185088. Its totient is φ = 1030421340.

The previous prime is 1031303179. The next prime is 1031303227. The reversal of 1031303213 is 3123031301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1031303213 - 2¹⁸ = 1031041069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031303191 and 1031303200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031303243) 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, 439181 + ... + 441522.

It is an arithmetic number, because the mean of its divisors is an integer number (258046272).

Almost surely, 2^1031303213 is an apocalyptic number.

It is an amenable number.

1031303213 is a deficient number, since it is larger than the sum of its proper divisors (881875).

1031303213 is an equidigital number, since it uses as much as digits as its factorization.

1031303213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881874.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1031303213 is about 32113.9099612613. The cubic root of 1031303213 is about 1010.3273823520.

Adding to 1031303213 its reverse (3123031301), we get a palindrome (4154334514).

The spelling of 1031303213 in words is "one billion, thirty-one million, three hundred three thousand, two hundred thirteen".