202312221311 has 2 divisors, whose sum is σ = 202312221312. Its totient is φ = 202312221310.

The previous prime is 202312221281. The next prime is 202312221323. The reversal of 202312221311 is 113122213202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202312221311 - 2²² = 202308027007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202312221341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101156110655 + 101156110656.

It is an arithmetic number, because the mean of its divisors is an integer number (101156110656).

Almost surely, 2^202312221311 is an apocalyptic number.

202312221311 is a deficient number, since it is larger than the sum of its proper divisors (1).

202312221311 is an equidigital number, since it uses as much as digits as its factorization.

202312221311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 202312221311 its reverse (113122213202), we get a palindrome (315434434513).

The spelling of 202312221311 in words is "two hundred two billion, three hundred twelve million, two hundred twenty-one thousand, three hundred eleven".