121432061 has 4 divisors (see below), whose sum is σ = 121967232. Its totient is φ = 120896892.

The previous prime is 121432057. The next prime is 121432117. The reversal of 121432061 is 160234121.

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: 160234121 = 331 ⋅484091.

It is a cyclic number.

It is not a de Polignac number, because 121432061 - 2² = 121432057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121437061) 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, 267245 + ... + 267698.

It is an arithmetic number, because the mean of its divisors is an integer number (30491808).

Almost surely, 2^121432061 is an apocalyptic number.

It is an amenable number.

121432061 is a deficient number, since it is larger than the sum of its proper divisors (535171).

121432061 is an equidigital number, since it uses as much as digits as its factorization.

121432061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535170.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 121432061 is about 11019.6216359728. The cubic root of 121432061 is about 495.1967533996.

Adding to 121432061 its reverse (160234121), we get a palindrome (281666182).

The spelling of 121432061 in words is "one hundred twenty-one million, four hundred thirty-two thousand, sixty-one".