3113213210021 has 2 divisors, whose sum is σ = 3113213210022. Its totient is φ = 3113213210020.

The previous prime is 3113213209993. The next prime is 3113213210083. The reversal of 3113213210021 is 1200123123113.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2397886317121 + 715326892900 = 1548511^2 + 845770^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113213210021 - 2³⁴ = 3096033340837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3113213209975 and 3113213210002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3113213218021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556606605010 + 1556606605011.

It is an arithmetic number, because the mean of its divisors is an integer number (1556606605011).

Almost surely, 2^{3113213210021} is an apocalyptic number.

It is an amenable number.

3113213210021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113213210021 is an equidigital number, since it uses as much as digits as its factorization.

3113213210021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 3113213210021 its reverse (1200123123113), we get a palindrome (4313336333134).

The spelling of 3113213210021 in words is "three trillion, one hundred thirteen billion, two hundred thirteen million, two hundred ten thousand, twenty-one".