121141141111 has 4 divisors (see below), whose sum is σ = 122949217912. Its totient is φ = 119333064312.

The previous prime is 121141141063. The next prime is 121141141153. The reversal of 121141141111 is 111141141121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121141141111 - 2⁷ = 121141140983 is a prime.

It is a super-3 number, since 3×121141141111³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121141141171) 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, 904038300 + ... + 904038433.

It is an arithmetic number, because the mean of its divisors is an integer number (30737304478).

Almost surely, 2^121141141111 is an apocalyptic number.

121141141111 is a deficient number, since it is larger than the sum of its proper divisors (1808076801).

121141141111 is an equidigital number, since it uses as much as digits as its factorization.

121141141111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808076800.

The product of its digits is 32, while the sum is 19.

Adding to 121141141111 its reverse (111141141121), we get a palindrome (232282282232).

The spelling of 121141141111 in words is "one hundred twenty-one billion, one hundred forty-one million, one hundred forty-one thousand, one hundred eleven".