11112421141 has 2 divisors, whose sum is σ = 11112421142. Its totient is φ = 11112421140.

The previous prime is 11112421123. The next prime is 11112421147. The reversal of 11112421141 is 14112421111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11076720516 + 35700625 = 105246^2 + 5975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112421141 is a prime.

It is a super-2 number, since 2×11112421141² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11112421147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556210570 + 5556210571.

It is an arithmetic number, because the mean of its divisors is an integer number (5556210571).

Almost surely, 2^11112421141 is an apocalyptic number.

It is an amenable number.

11112421141 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112421141 is an equidigital number, since it uses as much as digits as its factorization.

11112421141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64, while the sum is 19.

Adding to 11112421141 its reverse (14112421111), we get a palindrome (25224842252).

The spelling of 11112421141 in words is "eleven billion, one hundred twelve million, four hundred twenty-one thousand, one hundred forty-one".