111000971129 has 2 divisors, whose sum is σ = 111000971130. Its totient is φ = 111000971128.

The previous prime is 111000971099. The next prime is 111000971131. The reversal of 111000971129 is 921179000111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108160081129 + 2840890000 = 328877^2 + 53300^2 .

It is a cyclic number.

It is not a de Polignac number, because 111000971129 - 2²⁴ = 110984193913 is a prime.

Together with 111000971131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 111000971095 and 111000971104.

It is not a weakly prime, because it can be changed into another prime (111000971149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500485564 + 55500485565.

It is an arithmetic number, because the mean of its divisors is an integer number (55500485565).

Almost surely, 2^111000971129 is an apocalyptic number.

It is an amenable number.

111000971129 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000971129 is an equidigital number, since it uses as much as digits as its factorization.

111000971129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 32.

The spelling of 111000971129 in words is "one hundred eleven billion, nine hundred seventy-one thousand, one hundred twenty-nine".