11623221400 has 144 divisors (see below), whose sum is σ = 31750021440. Its totient is φ = 3945312000.

The previous prime is 11623221347. The next prime is 11623221413. The reversal of 11623221400 is 412232611.

It is a congruent number.

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, 983929 + ... + 995671.

It is an arithmetic number, because the mean of its divisors is an integer number (220486260).

Almost surely, 2^11623221400 is an apocalyptic number.

11623221400 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 11623221400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15875010720).

11623221400 is an abundant number, since it is smaller than the sum of its proper divisors (20126800040).

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

11623221400 is a wasteful number, since it uses less digits than its factorization.

11623221400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11874 (or 11858 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 11623221400 in words is "eleven billion, six hundred twenty-three million, two hundred twenty-one thousand, four hundred".