1131050213 has 4 divisors (see below), whose sum is σ = 1144677408. Its totient is φ = 1117423020.

The previous prime is 1131050203. The next prime is 1131050233. The reversal of 1131050213 is 3120501311.

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: 3120501311 = 3659 ⋅852829.

It is a cyclic number.

It is not a de Polignac number, because 1131050213 - 2¹⁴ = 1131033829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131050191 and 1131050200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131050203) 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, 6813473 + ... + 6813638.

It is an arithmetic number, because the mean of its divisors is an integer number (286169352).

Almost surely, 2^1131050213 is an apocalyptic number.

It is an amenable number.

1131050213 is a deficient number, since it is larger than the sum of its proper divisors (13627195).

1131050213 is an equidigital number, since it uses as much as digits as its factorization.

1131050213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13627194.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1131050213 is about 33631.0899763894. The cubic root of 1131050213 is about 1041.9030162473.

Adding to 1131050213 its reverse (3120501311), we get a palindrome (4251551524).

The spelling of 1131050213 in words is "one billion, one hundred thirty-one million, fifty thousand, two hundred thirteen".