111338744535381 has 64 divisors (see below), whose sum is σ = 168338628930816. Its totient is φ = 64861979904000.

The previous prime is 111338744535373. The next prime is 111338744535397. The reversal of 111338744535381 is 183535447833111.

It is not a de Polignac number, because 111338744535381 - 2³ = 111338744535373 is a prime.

It is a super-2 number, since 2×111338744535381² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111338744535341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55369911 + ... + 57345483.

It is an arithmetic number, because the mean of its divisors is an integer number (2630291077044).

Almost surely, 2^{111338744535381} is an apocalyptic number.

111338744535381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111338744535381 is a deficient number, since it is larger than the sum of its proper divisors (56999884395435).

111338744535381 is a wasteful number, since it uses less digits than its factorization.

111338744535381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976182.

The product of its digits is 14515200, while the sum is 57.

The spelling of 111338744535381 in words is "one hundred eleven trillion, three hundred thirty-eight billion, seven hundred forty-four million, five hundred thirty-five thousand, three hundred eighty-one".