11115142345 has 16 divisors (see below), whose sum is σ = 13548679488. Its totient is φ = 8752835520.

The previous prime is 11115142331. The next prime is 11115142373. The reversal of 11115142345 is 54324151111.

It is a happy number.

It is not a de Polignac number, because 11115142345 - 2³¹ = 8967658697 is a prime.

It is a super-2 number, since 2×11115142345² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17830 + ... + 150160.

It is an arithmetic number, because the mean of its divisors is an integer number (846792468).

Almost surely, 2^11115142345 is an apocalyptic number.

It is an amenable number.

11115142345 is a deficient number, since it is larger than the sum of its proper divisors (2433537143).

11115142345 is a wasteful number, since it uses less digits than its factorization.

11115142345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132600.

The product of its digits is 2400, while the sum is 28.

Adding to 11115142345 its reverse (54324151111), we get a palindrome (65439293456).

The spelling of 11115142345 in words is "eleven billion, one hundred fifteen million, one hundred forty-two thousand, three hundred forty-five".