111532519997 has 2 divisors, whose sum is σ = 111532519998. Its totient is φ = 111532519996.

The previous prime is 111532519993. The next prime is 111532520009. The reversal of 111532519997 is 799915235111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95795821081 + 15736698916 = 309509^2 + 125446^2 .

It is an emirp because it is prime and its reverse (799915235111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111532519997 - 2² = 111532519993 is a prime.

It is a super-3 number, since 3×111532519997³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111532519993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55766259998 + 55766259999.

It is an arithmetic number, because the mean of its divisors is an integer number (55766259999).

Almost surely, 2^111532519997 is an apocalyptic number.

It is an amenable number.

111532519997 is a deficient number, since it is larger than the sum of its proper divisors (1).

111532519997 is an equidigital number, since it uses as much as digits as its factorization.

111532519997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 765450, while the sum is 53.

The spelling of 111532519997 in words is "one hundred eleven billion, five hundred thirty-two million, five hundred nineteen thousand, nine hundred ninety-seven".