1031133213 has 64 divisors (see below), whose sum is σ = 1709475840. Its totient is φ = 609033600.

The previous prime is 1031133209. The next prime is 1031133223. The reversal of 1031133213 is 3123311301.

It is a happy number.

1031133213 is a `hidden beast` number, since 10 + 311 + 332 + 13 = 666.

It is not a de Polignac number, because 1031133213 - 2² = 1031133209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031133223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2256081 + ... + 2256537.

It is an arithmetic number, because the mean of its divisors is an integer number (26710560).

Almost surely, 2^1031133213 is an apocalyptic number.

It is an amenable number.

1031133213 is a deficient number, since it is larger than the sum of its proper divisors (678342627).

1031133213 is a wasteful number, since it uses less digits than its factorization.

1031133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1031133213 is about 32111.2630240543. The cubic root of 1031133213 is about 1010.2718651866.

Adding to 1031133213 its reverse (3123311301), we get a palindrome (4154444514).

The spelling of 1031133213 in words is "one billion, thirty-one million, one hundred thirty-three thousand, two hundred thirteen".