11731204120 has 32 divisors (see below), whose sum is σ = 27305391600. Its totient is φ = 4530671488.

The previous prime is 11731204103. The next prime is 11731204123. The reversal of 11731204120 is 2140213711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11731204091 and 11731204100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11731204123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5055394 + ... + 5057713.

Almost surely, 2^11731204120 is an apocalyptic number.

11731204120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11731204120 is an abundant number, since it is smaller than the sum of its proper divisors (15574187480).

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

11731204120 is a wasteful number, since it uses less digits than its factorization.

11731204120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10113147 (or 10113143 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 11731204120 its reverse (2140213711), we get a palindrome (13871417831).

The spelling of 11731204120 in words is "eleven billion, seven hundred thirty-one million, two hundred four thousand, one hundred twenty".