1130213021 has 4 divisors (see below), whose sum is σ = 1291672032. Its totient is φ = 968754012.

The previous prime is 1130212997. The next prime is 1130213033. The reversal of 1130213021 is 1203120311.

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: 1203120311 = 17 ⋅70771783.

It is a cyclic number.

It is not a de Polignac number, because 1130213021 - 2¹⁰ = 1130211997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1130212987 and 1130213005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130213621) 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, 80729495 + ... + 80729508.

It is an arithmetic number, because the mean of its divisors is an integer number (322918008).

Almost surely, 2^1130213021 is an apocalyptic number.

It is an amenable number.

1130213021 is a deficient number, since it is larger than the sum of its proper divisors (161459011).

1130213021 is an equidigital number, since it uses as much as digits as its factorization.

1130213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161459010.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1130213021 is about 33618.6409749115. The cubic root of 1130213021 is about 1041.6458840810.

Adding to 1130213021 its reverse (1203120311), we get a palindrome (2333333332).

The spelling of 1130213021 in words is "one billion, one hundred thirty million, two hundred thirteen thousand, twenty-one".