11214955019 has 4 divisors (see below), whose sum is σ = 11250333744. Its totient is φ = 11179576296.

The previous prime is 11214955009. The next prime is 11214955051. The reversal of 11214955019 is 91055941211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11214955019 is a prime.

It is a super-2 number, since 2×11214955019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11214955009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17688887 + ... + 17689520.

It is an arithmetic number, because the mean of its divisors is an integer number (2812583436).

Almost surely, 2^11214955019 is an apocalyptic number.

11214955019 is a deficient number, since it is larger than the sum of its proper divisors (35378725).

11214955019 is an equidigital number, since it uses as much as digits as its factorization.

11214955019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35378724.

The product of its (nonzero) digits is 16200, while the sum is 38.

The spelling of 11214955019 in words is "eleven billion, two hundred fourteen million, nine hundred fifty-five thousand, nineteen".