1023313133 has 4 divisors (see below), whose sum is σ = 1025414880. Its totient is φ = 1021211388.

The previous prime is 1023313129. The next prime is 1023313141. The reversal of 1023313133 is 3313133201.

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 1023313133 - 2² = 1023313129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023313433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050143 + ... + 1051116.

It is an arithmetic number, because the mean of its divisors is an integer number (256353720).

Almost surely, 2^1023313133 is an apocalyptic number.

It is an amenable number.

1023313133 is a deficient number, since it is larger than the sum of its proper divisors (2101747).

1023313133 is an equidigital number, since it uses as much as digits as its factorization.

1023313133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101746.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1023313133 is about 31989.2659027993. The cubic root of 1023313133 is about 1007.7114253956.

Adding to 1023313133 its reverse (3313133201), we get a palindrome (4336446334).

The spelling of 1023313133 in words is "one billion, twenty-three million, three hundred thirteen thousand, one hundred thirty-three".