11723430880 has 96 divisors (see below), whose sum is σ = 31674525120. Its totient is φ = 4016762880.

The previous prime is 11723430847. The next prime is 11723430889. The reversal of 11723430880 is 8803432711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11723430889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2395476 + ... + 2400364.

It is an arithmetic number, because the mean of its divisors is an integer number (329942970).

Almost surely, 2^11723430880 is an apocalyptic number.

11723430880 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 11723430880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15837262560).

11723430880 is an abundant number, since it is smaller than the sum of its proper divisors (19951094240).

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

11723430880 is a wasteful number, since it uses less digits than its factorization.

11723430880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7052 (or 7044 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 11723430880 in words is "eleven billion, seven hundred twenty-three million, four hundred thirty thousand, eight hundred eighty".