1136342021 has 2 divisors, whose sum is σ = 1136342022. Its totient is φ = 1136342020.

The previous prime is 1136341993. The next prime is 1136342027. The reversal of 1136342021 is 1202436311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 963419521 + 172922500 = 31039^2 + 13150^2 .

It is an emirp because it is prime and its reverse (1202436311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1136342021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1136342027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568171010 + 568171011.

It is an arithmetic number, because the mean of its divisors is an integer number (568171011).

Almost surely, 2^1136342021 is an apocalyptic number.

It is an amenable number.

1136342021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1136342021 is an equidigital number, since it uses as much as digits as its factorization.

1136342021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1136342021 is about 33709.6725139833. The cubic root of 1136342021 is about 1043.5253946480.

Adding to 1136342021 its reverse (1202436311), we get a palindrome (2338778332).

The spelling of 1136342021 in words is "one billion, one hundred thirty-six million, three hundred forty-two thousand, twenty-one".