2321015111287 has 2 divisors, whose sum is σ = 2321015111288. Its totient is φ = 2321015111286.

The previous prime is 2321015111267. The next prime is 2321015111381. The reversal of 2321015111287 is 7821115101232.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2321015111287 is a prime.

It is a super-3 number, since 3×2321015111287³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2321015111257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160507555643 + 1160507555644.

It is an arithmetic number, because the mean of its divisors is an integer number (1160507555644).

Almost surely, 2^{2321015111287} is an apocalyptic number.

2321015111287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321015111287 is an equidigital number, since it uses as much as digits as its factorization.

2321015111287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 34.

The spelling of 2321015111287 in words is "two trillion, three hundred twenty-one billion, fifteen million, one hundred eleven thousand, two hundred eighty-seven".