121233020 has 24 divisors (see below), whose sum is σ = 256426800. Its totient is φ = 48143232.

The previous prime is 121233019. The next prime is 121233029. The reversal of 121233020 is 20332121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121232986 and 121233004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121233029) 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, 19025 + ... + 24584.

It is an arithmetic number, because the mean of its divisors is an integer number (10684450).

Almost surely, 2^121233020 is an apocalyptic number.

121233020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121233020 is an abundant number, since it is smaller than the sum of its proper divisors (135193780).

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

121233020 is a wasteful number, since it uses less digits than its factorization.

121233020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43757 (or 43755 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 121233020 is about 11010.5867236946. The cubic root of 121233020 is about 494.9260441155.

Adding to 121233020 its reverse (20332121), we get a palindrome (141565141).

The spelling of 121233020 in words is "one hundred twenty-one million, two hundred thirty-three thousand, twenty".