121301400 has 96 divisors (see below), whose sum is σ = 410241600. Its totient is φ = 29404800.

The previous prime is 121301387. The next prime is 121301449. The reversal of 121301400 is 4103121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2590 + ... + 15789.

It is an arithmetic number, because the mean of its divisors is an integer number (4273350).

Almost surely, 2^121301400 is an apocalyptic number.

121301400 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 121301400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205120800).

121301400 is an abundant number, since it is smaller than the sum of its proper divisors (288940200).

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

121301400 is a wasteful number, since it uses less digits than its factorization.

121301400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18409 (or 18400 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 121301400 is about 11013.6914792453. The cubic root of 121301400 is about 495.0190789504.

Adding to 121301400 its reverse (4103121), we get a palindrome (125404521).

It can be divided in two parts, 12130 and 1400, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 121301400 in words is "one hundred twenty-one million, three hundred one thousand, four hundred".