111521055419 has 2 divisors, whose sum is σ = 111521055420. Its totient is φ = 111521055418.

The previous prime is 111521055383. The next prime is 111521055467. The reversal of 111521055419 is 914550125111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111521055419 - 2²⁴ = 111504278203 is a prime.

It is a super-2 number, since 2×111521055419² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111521054419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55760527709 + 55760527710.

It is an arithmetic number, because the mean of its divisors is an integer number (55760527710).

Almost surely, 2^111521055419 is an apocalyptic number.

111521055419 is a deficient number, since it is larger than the sum of its proper divisors (1).

111521055419 is an equidigital number, since it uses as much as digits as its factorization.

111521055419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 35.

The spelling of 111521055419 in words is "one hundred eleven billion, five hundred twenty-one million, fifty-five thousand, four hundred nineteen".