111521344523352 has 32 divisors (see below), whose sum is σ = 281270647698480. Its totient is φ = 36844809989120.

The previous prime is 111521344523339. The next prime is 111521344523357. The reversal of 111521344523352 is 253325443125111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111521344523357) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20560717149 + ... + 20560722572.

Almost surely, 2^{111521344523352} is an apocalyptic number.

111521344523352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111521344523352 is an abundant number, since it is smaller than the sum of its proper divisors (169749303175128).

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

111521344523352 is a wasteful number, since it uses less digits than its factorization.

111521344523352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41121439843 (or 41121439839 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

Adding to 111521344523352 its reverse (253325443125111), we get a palindrome (364846787648463).

The spelling of 111521344523352 in words is "one hundred eleven trillion, five hundred twenty-one billion, three hundred forty-four million, five hundred twenty-three thousand, three hundred fifty-two".