121433620 has 48 divisors (see below), whose sum is σ = 317939328. Its totient is φ = 37848960.

The previous prime is 121433573. The next prime is 121433633. The reversal of 121433620 is 26334121.

It is a super-2 number, since 2×121433620² = 29492248132608800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 121433591 and 121433600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37887 + ... + 40966.

It is an arithmetic number, because the mean of its divisors is an integer number (6623736).

Almost surely, 2^121433620 is an apocalyptic number.

121433620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121433620 is an abundant number, since it is smaller than the sum of its proper divisors (196505708).

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

121433620 is a wasteful number, since it uses less digits than its factorization.

121433620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78880 (or 78878 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 121433620 is about 11019.6923732017. The cubic root of 121433620 is about 495.1988725775.

Adding to 121433620 its reverse (26334121), we get a palindrome (147767741).

The spelling of 121433620 in words is "one hundred twenty-one million, four hundred thirty-three thousand, six hundred twenty".