1201131312201 has 12 divisors (see below), whose sum is σ = 1752853714612. Its totient is φ = 792499009536.

The previous prime is 1201131312197. The next prime is 1201131312209. The reversal of 1201131312201 is 1022131311021.

1201131312201 is a `hidden beast` number, since 1 + 20 + 1 + 131 + 312 + 201 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 961819564176 + 239311748025 = 980724^2 + 489195^2 .

It is not a de Polignac number, because 1201131312201 - 2² = 1201131312197 is a prime.

It is a super-2 number, since 2×1201131312201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201131312209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 687932296 + ... + 687934041.

Almost surely, 2^{1201131312201} is an apocalyptic number.

It is an amenable number.

1201131312201 is a deficient number, since it is larger than the sum of its proper divisors (551722402411).

1201131312201 is a wasteful number, since it uses less digits than its factorization.

1201131312201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375866440 (or 1375866437 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1201131312201 its reverse (1022131311021), we get a palindrome (2223262623222).

The spelling of 1201131312201 in words is "one trillion, two hundred one billion, one hundred thirty-one million, three hundred twelve thousand, two hundred one".