121233103202400 has 576 divisors, whose sum is σ = 452467955197440. Its totient is φ = 27619540992000.

The previous prime is 121233103202399. The next prime is 121233103202441. The reversal of 121233103202400 is 4202301332121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10462849407 + ... + 10462860993.

It is an arithmetic number, because the mean of its divisors is an integer number (785534644440).

Almost surely, 2^{121233103202400} is an apocalyptic number.

121233103202400 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 121233103202400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226233977598720).

121233103202400 is an abundant number, since it is smaller than the sum of its proper divisors (331234851995040).

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

121233103202400 is a wasteful number, since it uses less digits than its factorization.

121233103202400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13607 (or 13594 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121233103202400 its reverse (4202301332121), we get a palindrome (125435404534521).

The spelling of 121233103202400 in words is "one hundred twenty-one trillion, two hundred thirty-three billion, one hundred three million, two hundred two thousand, four hundred".