1133051421 has 4 divisors (see below), whose sum is σ = 1510735232. Its totient is φ = 755367612.

The previous prime is 1133051401. The next prime is 1133051429. The reversal of 1133051421 is 1241503311.

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 not a de Polignac number, because 1133051421 - 2⁵ = 1133051389 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 (1133051429) 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, 188841901 + ... + 188841906.

It is an arithmetic number, because the mean of its divisors is an integer number (377683808).

Almost surely, 2^1133051421 is an apocalyptic number.

It is an amenable number.

1133051421 is a deficient number, since it is larger than the sum of its proper divisors (377683811).

1133051421 is an equidigital number, since it uses as much as digits as its factorization.

1133051421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377683810.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1133051421 is about 33660.8291787353. The cubic root of 1133051421 is about 1042.5171464035.

Adding to 1133051421 its reverse (1241503311), we get a palindrome (2374554732).

The spelling of 1133051421 in words is "one billion, one hundred thirty-three million, fifty-one thousand, four hundred twenty-one".