121145232 has 120 divisors (see below), whose sum is σ = 353282944. Its totient is φ = 35557632.

The previous prime is 121145203. The next prime is 121145237. The reversal of 121145232 is 232541121.

It is a super-3 number, since 3×121145232³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121145199 and 121145208.

It is not an unprimeable number, because it can be changed into a prime (121145237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329913 + ... + 330279.

Almost surely, 2^121145232 is an apocalyptic number.

121145232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121145232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176641472).

121145232 is an abundant number, since it is smaller than the sum of its proper divisors (232137712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121145232 is a wasteful number, since it uses less digits than its factorization.

121145232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 408 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 121145232 is about 11006.5994748605. The cubic root of 121145232 is about 494.8065523049.

Adding to 121145232 its reverse (232541121), we get a palindrome (353686353).

The spelling of 121145232 in words is "one hundred twenty-one million, one hundred forty-five thousand, two hundred thirty-two".