11212534545 has 16 divisors (see below), whose sum is σ = 17972865600. Its totient is φ = 5969081664.

The previous prime is 11212534507. The next prime is 11212534549. The reversal of 11212534545 is 54543521211.

It is not a de Polignac number, because 11212534545 - 2⁶ = 11212534481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11212534549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 675070 + ... + 691479.

It is an arithmetic number, because the mean of its divisors is an integer number (1123304100).

Almost surely, 2^11212534545 is an apocalyptic number.

11212534545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11212534545 is a deficient number, since it is larger than the sum of its proper divisors (6760331055).

11212534545 is a wasteful number, since it uses less digits than its factorization.

11212534545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367104.

The product of its digits is 24000, while the sum is 33.

The spelling of 11212534545 in words is "eleven billion, two hundred twelve million, five hundred thirty-four thousand, five hundred forty-five".