121043063400 has 576 divisors, whose sum is σ = 464876496000. Its totient is φ = 25887375360.

The previous prime is 121043063389. The next prime is 121043063443. The reversal of 121043063400 is 4360340121.

121043063400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 99459592 + ... + 99460808.

It is an arithmetic number, because the mean of its divisors is an integer number (807077250).

Almost surely, 2^121043063400 is an apocalyptic number.

121043063400 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 121043063400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232438248000).

121043063400 is an abundant number, since it is smaller than the sum of its proper divisors (343833432600).

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

121043063400 is a wasteful number, since it uses less digits than its factorization.

121043063400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466 (or 1450 counting only the distinct ones).

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

The spelling of 121043063400 in words is "one hundred twenty-one billion, forty-three million, sixty-three thousand, four hundred".