20223323377 has 2 divisors, whose sum is σ = 20223323378. Its totient is φ = 20223323376.

The previous prime is 20223323327. The next prime is 20223323381. The reversal of 20223323377 is 77332332202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18703571121 + 1519752256 = 136761^2 + 38984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20223323377 is a prime.

It is not a weakly prime, because it can be changed into another prime (20223323327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111661688 + 10111661689.

It is an arithmetic number, because the mean of its divisors is an integer number (10111661689).

Almost surely, 2^20223323377 is an apocalyptic number.

It is an amenable number.

20223323377 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223323377 is an equidigital number, since it uses as much as digits as its factorization.

20223323377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 34.

Adding to 20223323377 its reverse (77332332202), we get a palindrome (97555655579).

The spelling of 20223323377 in words is "twenty billion, two hundred twenty-three million, three hundred twenty-three thousand, three hundred seventy-seven".