11543923421100 has 1512 divisors, whose sum is σ = 47242982870160. Its totient is φ = 2431647267840.

The previous prime is 11543923421047. The next prime is 11543923421101. The reversal of 11543923421100 is 112432934511.

11543923421100 is a `hidden beast` number, since 1 + 1 + 5 + 43 + 92 + 3 + 421 + 100 = 666.

It is a super-2 number, since 2×11543923421100² (a number of 27 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (11543923421101) by changing a digit.

It is a polite number, since it can be written in 503 ways as a sum of consecutive naturals, for example, 2511184002 + ... + 2511188598.

Almost surely, 2^{11543923421100} is an apocalyptic number.

11543923421100 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 11543923421100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23621491435080).

11543923421100 is an abundant number, since it is smaller than the sum of its proper divisors (35699059449060).

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

11543923421100 is a wasteful number, since it uses less digits than its factorization.

11543923421100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4699 (or 4670 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 11543923421100 in words is "eleven trillion, five hundred forty-three billion, nine hundred twenty-three million, four hundred twenty-one thousand, one hundred".