20233111313 has 2 divisors, whose sum is σ = 20233111314. Its totient is φ = 20233111312.

The previous prime is 20233111277. The next prime is 20233111321. The reversal of 20233111313 is 31311133202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19608961024 + 624150289 = 140032^2 + 24983^2 .

It is a cyclic number.

It is not a de Polignac number, because 20233111313 - 2⁸ = 20233111057 is a prime.

It is not a weakly prime, because it can be changed into another prime (20233111363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116555656 + 10116555657.

It is an arithmetic number, because the mean of its divisors is an integer number (10116555657).

Almost surely, 2^20233111313 is an apocalyptic number.

It is an amenable number.

20233111313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20233111313 is an equidigital number, since it uses as much as digits as its factorization.

20233111313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20233111313 its reverse (31311133202), we get a palindrome (51544244515).

The spelling of 20233111313 in words is "twenty billion, two hundred thirty-three million, one hundred eleven thousand, three hundred thirteen".