11900013 has 8 divisors (see below), whose sum is σ = 15888288. Its totient is φ = 7922544.

The previous prime is 11900003. The next prime is 11900033. The reversal of 11900013 is 31000911.

11900013 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11900013 - 2⁴ = 11899997 is a prime.

It is a super-2 number, since 2×11900013² = 283220618800338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11899965 and 11900001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11900003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370 + ... + 4892.

It is an arithmetic number, because the mean of its divisors is an integer number (1986036).

Almost surely, 2^11900013 is an apocalyptic number.

It is an amenable number.

11900013 is a deficient number, since it is larger than the sum of its proper divisors (3988275).

11900013 is an equidigital number, since it uses as much as digits as its factorization.

11900013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5403.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 11900013 is about 3449.6395463874. The cubic root of 11900013 is about 228.3052045315.

Adding to 11900013 its reverse (31000911), we get a palindrome (42900924).

The spelling of 11900013 in words is "eleven million, nine hundred thousand, thirteen".