1113133213 has 4 divisors (see below), whose sum is σ = 1149040768. Its totient is φ = 1077225660.

The previous prime is 1113133211. The next prime is 1113133249. The reversal of 1113133213 is 3123313111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3123313111 = 79 ⋅39535609.

It is a cyclic number.

It is not a de Polignac number, because 1113133213 - 2¹ = 1113133211 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 (1113133211) 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, 17953731 + ... + 17953792.

It is an arithmetic number, because the mean of its divisors is an integer number (287260192).

Almost surely, 2^1113133213 is an apocalyptic number.

It is an amenable number.

1113133213 is a deficient number, since it is larger than the sum of its proper divisors (35907555).

1113133213 is an equidigital number, since it uses as much as digits as its factorization.

1113133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35907554.

The product of its digits is 162, while the sum is 19.

The square root of 1113133213 is about 33363.6510741855. The cubic root of 1113133213 is about 1036.3721019536.

Adding to 1113133213 its reverse (3123313111), we get a palindrome (4236446324).

It can be divided in two parts, 11131 and 33213, that added together give a palindrome (44344).

The spelling of 1113133213 in words is "one billion, one hundred thirteen million, one hundred thirty-three thousand, two hundred thirteen".