117052121429 has 4 divisors (see below), whose sum is σ = 119260652076. Its totient is φ = 114843590784.

The previous prime is 117052121423. The next prime is 117052121471. The reversal of 117052121429 is 924121250711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 924121250711 = 43 ⋅21491191877.

It can be written as a sum of positive squares in 2 ways, for example, as 90707585329 + 26344536100 = 301177^2 + 162310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117052121429 is a prime.

It is a super-2 number, since 2×117052121429² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117052121423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1104265244 + ... + 1104265349.

It is an arithmetic number, because the mean of its divisors is an integer number (29815163019).

Almost surely, 2^117052121429 is an apocalyptic number.

It is an amenable number.

117052121429 is a deficient number, since it is larger than the sum of its proper divisors (2208530647).

117052121429 is an equidigital number, since it uses as much as digits as its factorization.

117052121429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208530646.

The product of its (nonzero) digits is 10080, while the sum is 35.

The spelling of 117052121429 in words is "one hundred seventeen billion, fifty-two million, one hundred twenty-one thousand, four hundred twenty-nine".