1111423141 has 2 divisors, whose sum is σ = 1111423142. Its totient is φ = 1111423140.

The previous prime is 1111423123. The next prime is 1111423151. The reversal of 1111423141 is 1413241111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1063412100 + 48011041 = 32610^2 + 6929^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111423141 - 2⁷ = 1111423013 is a prime.

It is a super-2 number, since 2×1111423141² = 2470522796700611762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111423151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555711570 + 555711571.

It is an arithmetic number, because the mean of its divisors is an integer number (555711571).

Almost surely, 2^1111423141 is an apocalyptic number.

It is an amenable number.

1111423141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111423141 is an equidigital number, since it uses as much as digits as its factorization.

1111423141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 19.

The square root of 1111423141 is about 33338.0134531138. The cubic root of 1111423141 is about 1035.8411145182.

Adding to 1111423141 its reverse (1413241111), we get a palindrome (2524664252).

The spelling of 1111423141 in words is "one billion, one hundred eleven million, four hundred twenty-three thousand, one hundred forty-one".