1201403427877 has 2 divisors, whose sum is σ = 1201403427878. Its totient is φ = 1201403427876.

The previous prime is 1201403427863. The next prime is 1201403427901. The reversal of 1201403427877 is 7787243041021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1094187129156 + 107216298721 = 1046034^2 + 327439^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201403427877 - 2²³ = 1201395039269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201403427827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600701713938 + 600701713939.

It is an arithmetic number, because the mean of its divisors is an integer number (600701713939).

Almost surely, 2^{1201403427877} is an apocalyptic number.

It is an amenable number.

1201403427877 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201403427877 is an equidigital number, since it uses as much as digits as its factorization.

1201403427877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 526848, while the sum is 46.

Adding to 1201403427877 its reverse (7787243041021), we get a palindrome (8988646468898).

The spelling of 1201403427877 in words is "one trillion, two hundred one billion, four hundred three million, four hundred twenty-seven thousand, eight hundred seventy-seven".