28603511311 has 2 divisors, whose sum is σ = 28603511312. Its totient is φ = 28603511310.

The previous prime is 28603511239. The next prime is 28603511351. The reversal of 28603511311 is 11311530682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28603511311 - 2¹⁵ = 28603478543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28603511351) 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, 14301755655 + 14301755656.

It is an arithmetic number, because the mean of its divisors is an integer number (14301755656).

Almost surely, 2^28603511311 is an apocalyptic number.

28603511311 is a deficient number, since it is larger than the sum of its proper divisors (1).

28603511311 is an equidigital number, since it uses as much as digits as its factorization.

28603511311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 28603511311 in words is "twenty-eight billion, six hundred three million, five hundred eleven thousand, three hundred eleven".