121106429 has 4 divisors (see below), whose sum is σ = 125013120. Its totient is φ = 117199740.

The previous prime is 121106423. The next prime is 121106441. The reversal of 121106429 is 924601121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 924601121 = 71 ⋅13022551.

It is a cyclic number.

It is not a de Polignac number, because 121106429 - 2⁴ = 121106413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121106398 and 121106407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121106423) 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, 1953299 + ... + 1953360.

It is an arithmetic number, because the mean of its divisors is an integer number (31253280).

Almost surely, 2^121106429 is an apocalyptic number.

It is an amenable number.

121106429 is a deficient number, since it is larger than the sum of its proper divisors (3906691).

121106429 is an equidigital number, since it uses as much as digits as its factorization.

121106429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906690.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 121106429 is about 11004.8366185055. The cubic root of 121106429 is about 494.7537175692.

The spelling of 121106429 in words is "one hundred twenty-one million, one hundred six thousand, four hundred twenty-nine".