1101505430400 has 384 divisors, whose sum is σ = 3664798473600. Its totient is φ = 290774016000.

The previous prime is 1101505430359. The next prime is 1101505430413. The reversal of 1101505430400 is 40345051011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 680360791 + ... + 680362409.

It is an arithmetic number, because the mean of its divisors is an integer number (9543746025).

Almost surely, 2^{1101505430400} is an apocalyptic number.

1101505430400 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 1101505430400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1832399236800).

1101505430400 is an abundant number, since it is smaller than the sum of its proper divisors (2563293043200).

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

1101505430400 is a wasteful number, since it uses less digits than its factorization.

1101505430400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318 (or 2301 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 1101505430400 in words is "one trillion, one hundred one billion, five hundred five million, four hundred thirty thousand, four hundred".