1201331312047 has 2 divisors, whose sum is σ = 1201331312048. Its totient is φ = 1201331312046.

The previous prime is 1201331312023. The next prime is 1201331312147. The reversal of 1201331312047 is 7402131331021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201331312047 - 2³¹ = 1199183828399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201331312017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600665656023 + 600665656024.

It is an arithmetic number, because the mean of its divisors is an integer number (600665656024).

Almost surely, 2^{1201331312047} is an apocalyptic number.

1201331312047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201331312047 is an equidigital number, since it uses as much as digits as its factorization.

1201331312047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 1201331312047 its reverse (7402131331021), we get a palindrome (8603462643068).

The spelling of 1201331312047 in words is "one trillion, two hundred one billion, three hundred thirty-one million, three hundred twelve thousand, forty-seven".