121446134231400 has 576 divisors, whose sum is σ = 457078097361600. Its totient is φ = 28638351360000.

The previous prime is 121446134231347. The next prime is 121446134231479. The reversal of 121446134231400 is 4132431644121.

It is a happy number.

121446134231400 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 4 + 6 + 13 + 4 + 231 + 400 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 3142102075 + ... + 3142140725.

It is an arithmetic number, because the mean of its divisors is an integer number (793538363475).

Almost surely, 2^{121446134231400} is an apocalyptic number.

121446134231400 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 121446134231400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228539048680800).

121446134231400 is an abundant number, since it is smaller than the sum of its proper divisors (335631963130200).

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

121446134231400 is a wasteful number, since it uses less digits than its factorization.

121446134231400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43010 (or 42998 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

Adding to 121446134231400 its reverse (4132431644121), we get a palindrome (125578565875521).

The spelling of 121446134231400 in words is "one hundred twenty-one trillion, four hundred forty-six billion, one hundred thirty-four million, two hundred thirty-one thousand, four hundred".