1331031301232 has 80 divisors (see below), whose sum is σ = 2758143547872. Its totient is φ = 620056657920.

The previous prime is 1331031301163. The next prime is 1331031301273. The reversal of 1331031301232 is 2321031301331.

It is a super-2 number, since 2×1331031301232² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331031301198 and 1331031301207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25207883 + ... + 25260629.

Almost surely, 2^{1331031301232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331031301232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1379071773936).

1331031301232 is an abundant number, since it is smaller than the sum of its proper divisors (1427112246640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331031301232 is a wasteful number, since it uses less digits than its factorization.

1331031301232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53706 (or 53700 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1331031301232 its reverse (2321031301331), we get a palindrome (3652062602563).

Subtracting 1331031301232 from its reverse (2321031301331), we obtain a palindrome (990000000099).

The spelling of 1331031301232 in words is "one trillion, three hundred thirty-one billion, thirty-one million, three hundred one thousand, two hundred thirty-two".