112171878029 has 2 divisors, whose sum is σ = 112171878030. Its totient is φ = 112171878028.

The previous prime is 112171877981. The next prime is 112171878139. The reversal of 112171878029 is 920878171211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110640721129 + 1531156900 = 332627^2 + 39130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112171878029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112171878629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56085939014 + 56085939015.

It is an arithmetic number, because the mean of its divisors is an integer number (56085939015).

Almost surely, 2^112171878029 is an apocalyptic number.

It is an amenable number.

112171878029 is a deficient number, since it is larger than the sum of its proper divisors (1).

112171878029 is an equidigital number, since it uses as much as digits as its factorization.

112171878029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 47.

The spelling of 112171878029 in words is "one hundred twelve billion, one hundred seventy-one million, eight hundred seventy-eight thousand, twenty-nine".