121123432 has 32 divisors (see below), whose sum is σ = 235382400. Its totient is φ = 58391424.

The previous prime is 121123421. The next prime is 121123439. The reversal of 121123432 is 234321121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121123439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24948 + ... + 29404.

It is an arithmetic number, because the mean of its divisors is an integer number (7355700).

Almost surely, 2^121123432 is an apocalyptic number.

It is an amenable number.

121123432 is a deficient number, since it is larger than the sum of its proper divisors (114258968).

121123432 is a wasteful number, since it uses less digits than its factorization.

121123432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585 (or 4581 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 121123432 is about 11005.6091153557. The cubic root of 121123432 is about 494.7768704931.

Adding to 121123432 its reverse (234321121), we get a palindrome (355444553).

The spelling of 121123432 in words is "one hundred twenty-one million, one hundred twenty-three thousand, four hundred thirty-two".