20213033223353 has 2 divisors, whose sum is σ = 20213033223354. Its totient is φ = 20213033223352.

The previous prime is 20213033223301. The next prime is 20213033223367. The reversal of 20213033223353 is 35332233031202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19331392975504 + 881640247849 = 4396748^2 + 938957^2 .

It is a cyclic number.

It is not a de Polignac number, because 20213033223353 - 2²⁴ = 20213016446137 is a prime.

It is not a weakly prime, because it can be changed into another prime (20213033222353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106516611676 + 10106516611677.

It is an arithmetic number, because the mean of its divisors is an integer number (10106516611677).

Almost surely, 2^{20213033223353} is an apocalyptic number.

It is an amenable number.

20213033223353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20213033223353 is an equidigital number, since it uses as much as digits as its factorization.

20213033223353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 32.

Adding to 20213033223353 its reverse (35332233031202), we get a palindrome (55545266254555).

The spelling of 20213033223353 in words is "twenty trillion, two hundred thirteen billion, thirty-three million, two hundred twenty-three thousand, three hundred fifty-three".