1133113021 has 2 divisors, whose sum is σ = 1133113022. Its totient is φ = 1133113020.

The previous prime is 1133112979. The next prime is 1133113057. The reversal of 1133113021 is 1203113311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 744471225 + 388641796 = 27285^2 + 19714^2 .

It is an emirp because it is prime and its reverse (1203113311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1133113021 - 2²⁹ = 596242109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1133112986 and 1133113004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1133113061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566556510 + 566556511.

It is an arithmetic number, because the mean of its divisors is an integer number (566556511).

Almost surely, 2^1133113021 is an apocalyptic number.

It is an amenable number.

1133113021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133113021 is an equidigital number, since it uses as much as digits as its factorization.

1133113021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1133113021 is about 33661.7441764386. The cubic root of 1133113021 is about 1042.5360387183.

Adding to 1133113021 its reverse (1203113311), we get a palindrome (2336226332).

The spelling of 1133113021 in words is "one billion, one hundred thirty-three million, one hundred thirteen thousand, twenty-one".