212113203353 has 2 divisors, whose sum is σ = 212113203354. Its totient is φ = 212113203352.

The previous prime is 212113203349. The next prime is 212113203383. The reversal of 212113203353 is 353302311212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194117785744 + 17995417609 = 440588^2 + 134147^2 .

It is a cyclic number.

It is not a de Polignac number, because 212113203353 - 2² = 212113203349 is a prime.

It is a super-2 number, since 2×212113203353² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212113203383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106056601676 + 106056601677.

It is an arithmetic number, because the mean of its divisors is an integer number (106056601677).

Almost surely, 2^212113203353 is an apocalyptic number.

It is an amenable number.

212113203353 is a deficient number, since it is larger than the sum of its proper divisors (1).

212113203353 is an equidigital number, since it uses as much as digits as its factorization.

212113203353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 212113203353 its reverse (353302311212), we get a palindrome (565415514565).

The spelling of 212113203353 in words is "two hundred twelve billion, one hundred thirteen million, two hundred three thousand, three hundred fifty-three".