109429107121 has 4 divisors (see below), whose sum is σ = 109785554032. Its totient is φ = 109072660212.

The previous prime is 109429107119. The next prime is 109429107131. The reversal of 109429107121 is 121701924901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109429107121 - 2¹ = 109429107119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109429107131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178222995 + ... + 178223608.

It is an arithmetic number, because the mean of its divisors is an integer number (27446388508).

Almost surely, 2^109429107121 is an apocalyptic number.

It is an amenable number.

109429107121 is a deficient number, since it is larger than the sum of its proper divisors (356446911).

109429107121 is an equidigital number, since it uses as much as digits as its factorization.

109429107121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356446910.

The product of its (nonzero) digits is 9072, while the sum is 37.

The spelling of 109429107121 in words is "one hundred nine billion, four hundred twenty-nine million, one hundred seven thousand, one hundred twenty-one".