1331032121331 has 16 divisors (see below), whose sum is σ = 2020222667520. Its totient is φ = 771612823520.

The previous prime is 1331032121327. The next prime is 1331032121417. The reversal of 1331032121331 is 1331212301331.

It is not a de Polignac number, because 1331032121331 - 2² = 1331032121327 is a prime.

It is a super-2 number, since 2×1331032121331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331032121131) 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, 876831996 + ... + 876833513.

It is an arithmetic number, because the mean of its divisors is an integer number (126263916720).

Almost surely, 2^{1331032121331} is an apocalyptic number.

1331032121331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1331032121331 is a deficient number, since it is larger than the sum of its proper divisors (689190546189).

1331032121331 is a wasteful number, since it uses less digits than its factorization.

1331032121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753665546.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1331032121331 its reverse (1331212301331), we get a palindrome (2662244422662).

The spelling of 1331032121331 in words is "one trillion, three hundred thirty-one billion, thirty-two million, one hundred twenty-one thousand, three hundred thirty-one".