1201111023443 has 2 divisors, whose sum is σ = 1201111023444. Its totient is φ = 1201111023442.

The previous prime is 1201111023439. The next prime is 1201111023527. The reversal of 1201111023443 is 3443201111021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201111023443 - 2² = 1201111023439 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201113023443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600555511721 + 600555511722.

It is an arithmetic number, because the mean of its divisors is an integer number (600555511722).

Almost surely, 2^{1201111023443} is an apocalyptic number.

1201111023443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201111023443 is an equidigital number, since it uses as much as digits as its factorization.

1201111023443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1201111023443 its reverse (3443201111021), we get a palindrome (4644312134464).

The spelling of 1201111023443 in words is "one trillion, two hundred one billion, one hundred eleven million, twenty-three thousand, four hundred forty-three".