122431000 has 64 divisors (see below), whose sum is σ = 288437760. Its totient is φ = 48640000.

The previous prime is 122430989. The next prime is 122431031. The reversal of 122431000 is 134221.

It is a super-2 number, since 2×122431000² = 29978699522000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190680 + ... + 191320.

It is an arithmetic number, because the mean of its divisors is an integer number (4506840).

Almost surely, 2^122431000 is an apocalyptic number.

122431000 is a gapful number since it is divisible by the number (10) 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 122431000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144218880).

122431000 is an abundant number, since it is smaller than the sum of its proper divisors (166006760).

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

122431000 is a wasteful number, since it uses less digits than its factorization.

122431000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 122431000 is about 11064.8542692618. The cubic root of 122431000 is about 496.5509291951.

Adding to 122431000 its reverse (134221), we get a palindrome (122565221).

The spelling of 122431000 in words is "one hundred twenty-two million, four hundred thirty-one thousand".