1111212141 has 8 divisors (see below), whose sum is σ = 1595586720. Its totient is φ = 683822832.

The previous prime is 1111212121. The next prime is 1111212203. The reversal of 1111212141 is 1412121111.

It is a happy number.

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

It is not a de Polignac number, because 1111212141 - 2¹⁵ = 1111179373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111212141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111212121) 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, 14246271 + ... + 14246348.

It is an arithmetic number, because the mean of its divisors is an integer number (199448340).

Almost surely, 2^1111212141 is an apocalyptic number.

It is an amenable number.

1111212141 is a deficient number, since it is larger than the sum of its proper divisors (484374579).

1111212141 is a wasteful number, since it uses less digits than its factorization.

1111212141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28492635.

The product of its digits is 16, while the sum is 15.

The square root of 1111212141 is about 33334.8487472195. The cubic root of 1111212141 is about 1035.7755600353.

Adding to 1111212141 its reverse (1412121111), we get a palindrome (2523333252).

The spelling of 1111212141 in words is "one billion, one hundred eleven million, two hundred twelve thousand, one hundred forty-one".