11720087043 has 32 divisors (see below), whose sum is σ = 17935948800. Its totient is φ = 6668476416.

The previous prime is 11720086979. The next prime is 11720087081. The reversal of 11720087043 is 34078002711.

It is a happy number.

It is not a de Polignac number, because 11720087043 - 2⁶ = 11720086979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11720086995 and 11720087013.

It is not an unprimeable number, because it can be changed into a prime (11720087543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6203443 + ... + 6205331.

It is an arithmetic number, because the mean of its divisors is an integer number (560498400).

Almost surely, 2^11720087043 is an apocalyptic number.

11720087043 is a deficient number, since it is larger than the sum of its proper divisors (6215861757).

11720087043 is a wasteful number, since it uses less digits than its factorization.

11720087043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011.

The product of its (nonzero) digits is 9408, while the sum is 33.

Adding to 11720087043 its reverse (34078002711), we get a palindrome (45798089754).

The spelling of 11720087043 in words is "eleven billion, seven hundred twenty million, eighty-seven thousand, forty-three".