11205142512 has 80 divisors (see below), whose sum is σ = 29204014752. Its totient is φ = 3701985280.

The previous prime is 11205142411. The next prime is 11205142537. The reversal of 11205142512 is 21524150211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2655028 + ... + 2659244.

Almost surely, 2^11205142512 is an apocalyptic number.

11205142512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11205142512 is an abundant number, since it is smaller than the sum of its proper divisors (17998872240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11205142512 is a wasteful number, since it uses less digits than its factorization.

11205142512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4706 (or 4700 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 11205142512 its reverse (21524150211), we get a palindrome (32729292723).

The spelling of 11205142512 in words is "eleven billion, two hundred five million, one hundred forty-two thousand, five hundred twelve".