11720202984 has 400 divisors, whose sum is σ = 39694427520. Its totient is φ = 3240609120.

The previous prime is 11720202979. The next prime is 11720202997. The reversal of 11720202984 is 48920202711.

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

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 378071049 + ... + 378071079.

Almost surely, 2^11720202984 is an apocalyptic number.

11720202984 is a gapful number since it is divisible by the number (14) 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 11720202984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19847213760).

11720202984 is an abundant number, since it is smaller than the sum of its proper divisors (27974224536).

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

11720202984 is an frugal number, since it uses more digits than its factorization.

11720202984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 11720202984 in words is "eleven billion, seven hundred twenty million, two hundred two thousand, nine hundred eighty-four".