111311434141 has 4 divisors (see below), whose sum is σ = 111789165852. Its totient is φ = 110833702432.

The previous prime is 111311434121. The next prime is 111311434153. The reversal of 111311434141 is 141434113111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141434113111 = 827 ⋅171020693.

It can be written as a sum of positive squares in 2 ways, for example, as 10296160900 + 101015273241 = 101470^2 + 317829^2 .

It is a cyclic number.

It is not a de Polignac number, because 111311434141 - 2¹³ = 111311425949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111311434111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238865506 + ... + 238865971.

It is an arithmetic number, because the mean of its divisors is an integer number (27947291463).

Almost surely, 2^111311434141 is an apocalyptic number.

It is an amenable number.

111311434141 is a deficient number, since it is larger than the sum of its proper divisors (477731711).

111311434141 is an equidigital number, since it uses as much as digits as its factorization.

111311434141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477731710.

The product of its digits is 576, while the sum is 25.

Adding to 111311434141 its reverse (141434113111), we get a palindrome (252745547252).

The spelling of 111311434141 in words is "one hundred eleven billion, three hundred eleven million, four hundred thirty-four thousand, one hundred forty-one".