11211053505432 has 64 divisors (see below), whose sum is σ = 31561910184960. Its totient is φ = 3287698972800.

The previous prime is 11211053505409. The next prime is 11211053505461. The reversal of 11211053505432 is 23450535011211.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 11211053505393 and 11211053505402.

It is a congruent 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, 684929103 + ... + 684945470.

It is an arithmetic number, because the mean of its divisors is an integer number (493154846640).

Almost surely, 2^{11211053505432} is an apocalyptic number.

11211053505432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11211053505432 is an abundant number, since it is smaller than the sum of its proper divisors (20350856679528).

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

11211053505432 is a wasteful number, since it uses less digits than its factorization.

11211053505432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369874624 (or 1369874620 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 11211053505432 its reverse (23450535011211), we get a palindrome (34661588516643).

The spelling of 11211053505432 in words is "eleven trillion, two hundred eleven billion, fifty-three million, five hundred five thousand, four hundred thirty-two".