1111141391 has 2 divisors, whose sum is σ = 1111141392. Its totient is φ = 1111141390.

The previous prime is 1111141363. The next prime is 1111141439. The reversal of 1111141391 is 1931411111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111141391 - 2⁶ = 1111141327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111141321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555570695 + 555570696.

It is an arithmetic number, because the mean of its divisors is an integer number (555570696).

Almost surely, 2^1111141391 is an apocalyptic number.

1111141391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111141391 is an equidigital number, since it uses as much as digits as its factorization.

1111141391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 23.

The square root of 1111141391 is about 33333.7875285723. The cubic root of 1111141391 is about 1035.7535772313.

The spelling of 1111141391 in words is "one billion, one hundred eleven million, one hundred forty-one thousand, three hundred ninety-one".