1311301202231 has 16 divisors (see below), whose sum is σ = 1395115154400. Its totient is φ = 1229001994368.

The previous prime is 1311301202209. The next prime is 1311301202257. The reversal of 1311301202231 is 1322021031131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1311301202231 - 2¹⁴ = 1311301185847 is a prime.

It is a super-2 number, since 2×1311301202231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311301202291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 867545 + ... + 1837181.

It is an arithmetic number, because the mean of its divisors is an integer number (87194697150).

Almost surely, 2^{1311301202231} is an apocalyptic number.

1311301202231 is a deficient number, since it is larger than the sum of its proper divisors (83813952169).

1311301202231 is a wasteful number, since it uses less digits than its factorization.

1311301202231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970418.

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

Adding to 1311301202231 its reverse (1322021031131), we get a palindrome (2633322233362).

The spelling of 1311301202231 in words is "one trillion, three hundred eleven billion, three hundred one million, two hundred two thousand, two hundred thirty-one".