20115045311 has 2 divisors, whose sum is σ = 20115045312. Its totient is φ = 20115045310.

The previous prime is 20115045283. The next prime is 20115045323. The reversal of 20115045311 is 11354051102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20115045311 - 2¹⁸ = 20114783167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20115045211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10057522655 + 10057522656.

It is an arithmetic number, because the mean of its divisors is an integer number (10057522656).

Almost surely, 2^20115045311 is an apocalyptic number.

20115045311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20115045311 is an equidigital number, since it uses as much as digits as its factorization.

20115045311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 20115045311 its reverse (11354051102), we get a palindrome (31469096413).

The spelling of 20115045311 in words is "twenty billion, one hundred fifteen million, forty-five thousand, three hundred eleven".