1366020233 has 2 divisors, whose sum is σ = 1366020234. Its totient is φ = 1366020232.

The previous prime is 1366020223. The next prime is 1366020289. The reversal of 1366020233 is 3320206631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1190802064 + 175218169 = 34508^2 + 13237^2 .

It is a cyclic number.

It is not a de Polignac number, because 1366020233 - 2¹⁶ = 1365954697 is a prime.

It is a super-2 number, since 2×1366020233² = 3732022553930748578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1366020203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683010116 + 683010117.

It is an arithmetic number, because the mean of its divisors is an integer number (683010117).

Almost surely, 2^1366020233 is an apocalyptic number.

It is an amenable number.

1366020233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366020233 is an equidigital number, since it uses as much as digits as its factorization.

1366020233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 1366020233 is about 36959.7109431337. The cubic root of 1366020233 is about 1109.5640505939.

Adding to 1366020233 its reverse (3320206631), we get a palindrome (4686226864).

The spelling of 1366020233 in words is "one billion, three hundred sixty-six million, twenty thousand, two hundred thirty-three".