121232472 has 32 divisors (see below), whose sum is σ = 303367680. Its totient is φ = 40372640.

The previous prime is 121232453. The next prime is 121232477. The reversal of 121232472 is 274232121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121232477) 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, 36397 + ... + 39587.

It is an arithmetic number, because the mean of its divisors is an integer number (9480240).

Almost surely, 2^121232472 is an apocalyptic number.

121232472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121232472 is an abundant number, since it is smaller than the sum of its proper divisors (182135208).

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

121232472 is a wasteful number, since it uses less digits than its factorization.

121232472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4783 (or 4779 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 121232472 is about 11010.5618385258. The cubic root of 121232472 is about 494.9252983895.

Adding to 121232472 its reverse (274232121), we get a palindrome (395464593).

The spelling of 121232472 in words is "one hundred twenty-one million, two hundred thirty-two thousand, four hundred seventy-two".