31344403022021 has 2 divisors, whose sum is σ = 31344403022022. Its totient is φ = 31344403022020.

The previous prime is 31344403021973. The next prime is 31344403022027. The reversal of 31344403022021 is 12022030444313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30334880459521 + 1009522562500 = 5507711^2 + 1004750^2 .

It is a cyclic number.

It is not a de Polignac number, because 31344403022021 - 2²⁶ = 31344335913157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31344403022027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15672201511010 + 15672201511011.

It is an arithmetic number, because the mean of its divisors is an integer number (15672201511011).

Almost surely, 2^{31344403022021} is an apocalyptic number.

It is an amenable number.

31344403022021 is a deficient number, since it is larger than the sum of its proper divisors (1).

31344403022021 is an equidigital number, since it uses as much as digits as its factorization.

31344403022021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 31344403022021 its reverse (12022030444313), we get a palindrome (43366433466334).

The spelling of 31344403022021 in words is "thirty-one trillion, three hundred forty-four billion, four hundred three million, twenty-two thousand, twenty-one".