33213213073 has 2 divisors, whose sum is σ = 33213213074. Its totient is φ = 33213213072.

The previous prime is 33213213013. The next prime is 33213213097. The reversal of 33213213073 is 37031231233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18612599184 + 14600613889 = 136428^2 + 120833^2 .

It is a cyclic number.

It is not a de Polignac number, because 33213213073 - 2²¹ = 33211115921 is a prime.

It is a super-2 number, since 2×33213213073² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33213213013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16606606536 + 16606606537.

It is an arithmetic number, because the mean of its divisors is an integer number (16606606537).

Almost surely, 2^33213213073 is an apocalyptic number.

It is an amenable number.

33213213073 is a deficient number, since it is larger than the sum of its proper divisors (1).

33213213073 is an equidigital number, since it uses as much as digits as its factorization.

33213213073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 28.

The spelling of 33213213073 in words is "thirty-three billion, two hundred thirteen million, two hundred thirteen thousand, seventy-three".