1201111302427 has 2 divisors, whose sum is σ = 1201111302428. Its totient is φ = 1201111302426.

The previous prime is 1201111302409. The next prime is 1201111302463. The reversal of 1201111302427 is 7242031111021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201111302427 - 2¹⁹ = 1201110778139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201118302427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600555651213 + 600555651214.

It is an arithmetic number, because the mean of its divisors is an integer number (600555651214).

Almost surely, 2^{1201111302427} is an apocalyptic number.

1201111302427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201111302427 is an equidigital number, since it uses as much as digits as its factorization.

1201111302427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 1201111302427 its reverse (7242031111021), we get a palindrome (8443142413448).

The spelling of 1201111302427 in words is "one trillion, two hundred one billion, one hundred eleven million, three hundred two thousand, four hundred twenty-seven".