1153312213 has 2 divisors, whose sum is σ = 1153312214. Its totient is φ = 1153312212.

The previous prime is 1153312157. The next prime is 1153312219. The reversal of 1153312213 is 3122133511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1027715364 + 125596849 = 32058^2 + 11207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1153312213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153312219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576656106 + 576656107.

It is an arithmetic number, because the mean of its divisors is an integer number (576656107).

Almost surely, 2^1153312213 is an apocalyptic number.

It is an amenable number.

1153312213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153312213 is an equidigital number, since it uses as much as digits as its factorization.

1153312213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 22.

The square root of 1153312213 is about 33960.4507184460. The cubic root of 1153312213 is about 1048.6944356935.

Adding to 1153312213 its reverse (3122133511), we get a palindrome (4275445724).

It can be divided in two parts, 11533122 and 13, that multiplied together give a triangular number (149930586 = T₁₇₃₁₆).

The spelling of 1153312213 in words is "one billion, one hundred fifty-three million, three hundred twelve thousand, two hundred thirteen".