11142051619 has 4 divisors (see below), whose sum is σ = 11146652496. Its totient is φ = 11137450744.

The previous prime is 11142051593. The next prime is 11142051653. The reversal of 11142051619 is 91615024111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11142051619 - 2¹¹ = 11142049571 is a prime.

It is a super-2 number, since 2×11142051619² (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 (11142051689) 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, 2296804 + ... + 2301649.

It is an arithmetic number, because the mean of its divisors is an integer number (2786663124).

Almost surely, 2^11142051619 is an apocalyptic number.

11142051619 is a deficient number, since it is larger than the sum of its proper divisors (4600877).

11142051619 is an equidigital number, since it uses as much as digits as its factorization.

11142051619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4600876.

The product of its (nonzero) digits is 2160, while the sum is 31.

The spelling of 11142051619 in words is "eleven billion, one hundred forty-two million, fifty-one thousand, six hundred nineteen".