134121310400 has 252 divisors, whose sum is σ = 418806437976. Its totient is φ = 41803776000.

The previous prime is 134121310381. The next prime is 134121310423. The reversal of 134121310400 is 4013121431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 784640 + ... + 940160.

Almost surely, 2^134121310400 is an apocalyptic number.

134121310400 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 134121310400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209403218988).

134121310400 is an abundant number, since it is smaller than the sum of its proper divisors (284685127576).

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

134121310400 is a wasteful number, since it uses less digits than its factorization.

134121310400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155568 (or 155546 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 134121310400 its reverse (4013121431), we get a palindrome (138134431831).

The spelling of 134121310400 in words is "one hundred thirty-four billion, one hundred twenty-one million, three hundred ten thousand, four hundred".