11201247551540 has 12 divisors (see below), whose sum is σ = 23522619858276. Its totient is φ = 4480499020608.

The previous prime is 11201247551531. The next prime is 11201247551563. The reversal of 11201247551540 is 4515574210211.

11201247551540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6099892281616 + 5101355269924 = 2469796^2 + 2258618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11201247551494 and 11201247551503.

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, 280031188769 + ... + 280031188808.

It is an arithmetic number, because the mean of its divisors is an integer number (1960218321523).

Almost surely, 2^{11201247551540} is an apocalyptic number.

11201247551540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11201247551540 is an abundant number, since it is smaller than the sum of its proper divisors (12321372306736).

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

11201247551540 is a wasteful number, since it uses less digits than its factorization.

11201247551540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560062377586 (or 560062377584 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 38.

The spelling of 11201247551540 in words is "eleven trillion, two hundred one billion, two hundred forty-seven million, five hundred fifty-one thousand, five hundred forty".