33213023357 has 2 divisors, whose sum is σ = 33213023358. Its totient is φ = 33213023356.

The previous prime is 33213023287. The next prime is 33213023377. The reversal of 33213023357 is 75332031233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32908136836 + 304886521 = 181406^2 + 17461^2 .

It is a cyclic number.

It is not a de Polignac number, because 33213023357 - 2¹² = 33213019261 is a prime.

It is a super-2 number, since 2×33213023357² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33213023377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16606511678 + 16606511679.

It is an arithmetic number, because the mean of its divisors is an integer number (16606511679).

Almost surely, 2^33213023357 is an apocalyptic number.

It is an amenable number.

33213023357 is a deficient number, since it is larger than the sum of its proper divisors (1).

33213023357 is an equidigital number, since it uses as much as digits as its factorization.

33213023357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 32.

The spelling of 33213023357 in words is "thirty-three billion, two hundred thirteen million, twenty-three thousand, three hundred fifty-seven".