121432411 has 4 divisors (see below), whose sum is σ = 128575512. Its totient is φ = 114289312.

The previous prime is 121432393. The next prime is 121432453. The reversal of 121432411 is 114234121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121432411 - 2⁵ = 121432379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121432811) 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, 3571525 + ... + 3571558.

It is an arithmetic number, because the mean of its divisors is an integer number (32143878).

Almost surely, 2^121432411 is an apocalyptic number.

121432411 is a deficient number, since it is larger than the sum of its proper divisors (7143101).

121432411 is an equidigital number, since it uses as much as digits as its factorization.

121432411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7143100.

The product of its digits is 192, while the sum is 19.

The square root of 121432411 is about 11019.6375167244. The cubic root of 121432411 is about 495.1972291627.

Adding to 121432411 its reverse (114234121), we get a palindrome (235666532).

The spelling of 121432411 in words is "one hundred twenty-one million, four hundred thirty-two thousand, four hundred eleven".