121430135 has 4 divisors (see below), whose sum is σ = 145716168. Its totient is φ = 97144104.

The previous prime is 121430119. The next prime is 121430143. The reversal of 121430135 is 531034121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531034121 = 113 ⋅4699417.

It is a cyclic number.

It is not a de Polignac number, because 121430135 - 2⁴ = 121430119 is a prime.

It is a super-2 number, since 2×121430135² = 29490555372236450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12143009 + ... + 12143018.

It is an arithmetic number, because the mean of its divisors is an integer number (36429042).

Almost surely, 2^121430135 is an apocalyptic number.

121430135 is a deficient number, since it is larger than the sum of its proper divisors (24286033).

121430135 is an equidigital number, since it uses as much as digits as its factorization.

121430135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24286032.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 121430135 is about 11019.5342460560. The cubic root of 121430135 is about 495.1941353266.

Adding to 121430135 its reverse (531034121), we get a palindrome (652464256).

The spelling of 121430135 in words is "one hundred twenty-one million, four hundred thirty thousand, one hundred thirty-five".