11151212393 has 4 divisors (see below), whose sum is σ = 11151767508. Its totient is φ = 11150657280.

The previous prime is 11151212389. The next prime is 11151212411. The reversal of 11151212393 is 39321215111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39321215111 = 18541 ⋅2120771.

It can be written as a sum of positive squares in 2 ways, for example, as 7097725504 + 4053486889 = 84248^2 + 63667^2 .

It is a cyclic number.

It is not a de Polignac number, because 11151212393 - 2² = 11151212389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11151212353) 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, 246248 + ... + 287993.

It is an arithmetic number, because the mean of its divisors is an integer number (2787941877).

Almost surely, 2^11151212393 is an apocalyptic number.

It is an amenable number.

11151212393 is a deficient number, since it is larger than the sum of its proper divisors (555115).

11151212393 is an equidigital number, since it uses as much as digits as its factorization.

11151212393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555114.

The product of its digits is 1620, while the sum is 29.

The spelling of 11151212393 in words is "eleven billion, one hundred fifty-one million, two hundred twelve thousand, three hundred ninety-three".