111281690141 has 8 divisors (see below), whose sum is σ = 119151579960. Its totient is φ = 103558901248.

The previous prime is 111281690099. The next prime is 111281690189. The reversal of 111281690141 is 141096182111.

It can be written as a sum of positive squares in 4 ways, for example, as 3963206116 + 107318484025 = 62954^2 + 327595^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111281690141 - 2¹⁴ = 111281673757 is a prime.

It is a super-2 number, since 2×111281690141² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111281693141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36773666 + ... + 36776691.

It is an arithmetic number, because the mean of its divisors is an integer number (14893947495).

Almost surely, 2^111281690141 is an apocalyptic number.

It is an amenable number.

111281690141 is a deficient number, since it is larger than the sum of its proper divisors (7869889819).

111281690141 is an equidigital number, since it uses as much as digits as its factorization.

111281690141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73550463.

The product of its (nonzero) digits is 3456, while the sum is 35.

The spelling of 111281690141 in words is "one hundred eleven billion, two hundred eighty-one million, six hundred ninety thousand, one hundred forty-one".