121144432 has 40 divisors (see below), whose sum is σ = 240413184. Its totient is φ = 59115264.

The previous prime is 121144421. The next prime is 121144433. The reversal of 121144432 is 234441121.

It is a happy number.

It is a super-3 number, since 3×121144432³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121144433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316113 + ... + 316495.

Almost surely, 2^121144432 is an apocalyptic number.

It is an amenable number.

121144432 is a deficient number, since it is larger than the sum of its proper divisors (119268752).

121144432 is a wasteful number, since it uses less digits than its factorization.

121144432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 811 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 121144432 is about 11006.5631329675. The cubic root of 121144432 is about 494.8054631271.

Adding to 121144432 its reverse (234441121), we get a palindrome (355585553).

The spelling of 121144432 in words is "one hundred twenty-one million, one hundred forty-four thousand, four hundred thirty-two".