122431420 has 24 divisors (see below), whose sum is σ = 258988464. Its totient is φ = 48614016.

The previous prime is 122431403. The next prime is 122431427. The reversal of 122431420 is 24134221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122431427) 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, 19602 + ... + 25081.

It is an arithmetic number, because the mean of its divisors is an integer number (10791186).

Almost surely, 2^122431420 is an apocalyptic number.

122431420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122431420 is an abundant number, since it is smaller than the sum of its proper divisors (136557044).

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

122431420 is a wasteful number, since it uses less digits than its factorization.

122431420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44829 (or 44827 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 122431420 is about 11064.8732482573. The cubic root of 122431420 is about 496.5514970011.

Adding to 122431420 its reverse (24134221), we get a palindrome (146565641).

The spelling of 122431420 in words is "one hundred twenty-two million, four hundred thirty-one thousand, four hundred twenty".