121201732383900 has 288 divisors, whose sum is σ = 405877095536640. Its totient is φ = 27350538209280.

The previous prime is 121201732383817. The next prime is 121201732383947. The reversal of 121201732383900 is 9383237102121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3940607322 + ... + 3940638078.

Almost surely, 2^{121201732383900} is an apocalyptic number.

121201732383900 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 121201732383900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202938547768320).

121201732383900 is an abundant number, since it is smaller than the sum of its proper divisors (284675363152740).

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

121201732383900 is a wasteful number, since it uses less digits than its factorization.

121201732383900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54613 (or 54606 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 121201732383900 in words is "one hundred twenty-one trillion, two hundred one billion, seven hundred thirty-two million, three hundred eighty-three thousand, nine hundred".