11121520567 has 2 divisors, whose sum is σ = 11121520568. Its totient is φ = 11121520566.

The previous prime is 11121520541. The next prime is 11121520577. The reversal of 11121520567 is 76502512111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11121520567 - 2¹⁵ = 11121487799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121520577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560760283 + 5560760284.

It is an arithmetic number, because the mean of its divisors is an integer number (5560760284).

Almost surely, 2^11121520567 is an apocalyptic number.

11121520567 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121520567 is an equidigital number, since it uses as much as digits as its factorization.

11121520567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 31.

The spelling of 11121520567 in words is "eleven billion, one hundred twenty-one million, five hundred twenty thousand, five hundred sixty-seven".