1311032333231 has 8 divisors (see below), whose sum is σ = 1380484940400. Its totient is φ = 1241624816640.

The previous prime is 1311032333183. The next prime is 1311032333249. The reversal of 1311032333231 is 1323332301131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1311032333231 - 2³⁰ = 1309958591407 is a prime.

It is a super-2 number, since 2×1311032333231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311032333231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311032333431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11212946 + ... + 11329263.

It is an arithmetic number, because the mean of its divisors is an integer number (172560617550).

Almost surely, 2^{1311032333231} is an apocalyptic number.

1311032333231 is a deficient number, since it is larger than the sum of its proper divisors (69452607169).

1311032333231 is a wasteful number, since it uses less digits than its factorization.

1311032333231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22545289.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 1311032333231 its reverse (1323332301131), we get a palindrome (2634364634362).

The spelling of 1311032333231 in words is "one trillion, three hundred eleven billion, thirty-two million, three hundred thirty-three thousand, two hundred thirty-one".