111431100029 has 2 divisors, whose sum is σ = 111431100030. Its totient is φ = 111431100028.

The previous prime is 111431099951. The next prime is 111431100037. The reversal of 111431100029 is 920001134111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65172984100 + 46258115929 = 255290^2 + 215077^2 .

It is an emirp because it is prime and its reverse (920001134111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111431100029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111431099977 and 111431100013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111431100059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55715550014 + 55715550015.

It is an arithmetic number, because the mean of its divisors is an integer number (55715550015).

Almost surely, 2^111431100029 is an apocalyptic number.

It is an amenable number.

111431100029 is a deficient number, since it is larger than the sum of its proper divisors (1).

111431100029 is an equidigital number, since it uses as much as digits as its factorization.

111431100029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 111431100029 in words is "one hundred eleven billion, four hundred thirty-one million, one hundred thousand, twenty-nine".