1331030403121 has 4 divisors (see below), whose sum is σ = 1331414320752. Its totient is φ = 1330646485492.

The previous prime is 1331030403091. The next prime is 1331030403151. The reversal of 1331030403121 is 1213040301331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1331030403091) and next prime (1331030403151).

It is a cyclic number.

It is not a de Polignac number, because 1331030403121 - 2²⁹ = 1330493532209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331030403092 and 1331030403101.

It is not an unprimeable number, because it can be changed into a prime (1331030403151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191953615 + ... + 191960548.

It is an arithmetic number, because the mean of its divisors is an integer number (332853580188).

Almost surely, 2^{1331030403121} is an apocalyptic number.

It is an amenable number.

1331030403121 is a deficient number, since it is larger than the sum of its proper divisors (383917631).

1331030403121 is an equidigital number, since it uses as much as digits as its factorization.

1331030403121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383917630.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1331030403121 its reverse (1213040301331), we get a palindrome (2544070704452).

The spelling of 1331030403121 in words is "one trillion, three hundred thirty-one billion, thirty million, four hundred three thousand, one hundred twenty-one".