11115343412 has 12 divisors (see below), whose sum is σ = 19452965700. Its totient is φ = 5557353216.

The previous prime is 11115343399. The next prime is 11115343439. The reversal of 11115343412 is 21434351111.

It can be written as a sum of positive squares in 2 ways, for example, as 5728370596 + 5386972816 = 75686^2 + 73396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10148 + ... + 149444.

It is an arithmetic number, because the mean of its divisors is an integer number (1621080475).

Almost surely, 2^11115343412 is an apocalyptic number.

It is an amenable number.

11115343412 is a deficient number, since it is larger than the sum of its proper divisors (8337622288).

11115343412 is a wasteful number, since it uses less digits than its factorization.

11115343412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159250 (or 159248 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

Adding to 11115343412 its reverse (21434351111), we get a palindrome (32549694523).

The spelling of 11115343412 in words is "eleven billion, one hundred fifteen million, three hundred forty-three thousand, four hundred twelve".