1201132201331 has 4 divisors (see below), whose sum is σ = 1201188579432. Its totient is φ = 1201075823232.

The previous prime is 1201132201249. The next prime is 1201132201369. The reversal of 1201132201331 is 1331022311021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201132201331 is a prime.

It is a super-2 number, since 2×1201132201331² (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 (1201132201831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28157081 + ... + 28199706.

It is an arithmetic number, because the mean of its divisors is an integer number (300297144858).

Almost surely, 2^{1201132201331} is an apocalyptic number.

1201132201331 is a deficient number, since it is larger than the sum of its proper divisors (56378101).

1201132201331 is an equidigital number, since it uses as much as digits as its factorization.

1201132201331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56378100.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1201132201331 its reverse (1331022311021), we get a palindrome (2532154512352).

The spelling of 1201132201331 in words is "one trillion, two hundred one billion, one hundred thirty-two million, two hundred one thousand, three hundred thirty-one".