1331003032121 has 16 divisors (see below), whose sum is σ = 1550272348800. Its totient is φ = 1119027032448.

The previous prime is 1331003032043. The next prime is 1331003032129. The reversal of 1331003032121 is 1212303001331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331003032121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1331003032093 and 1331003032102.

It is not an unprimeable number, because it can be changed into a prime (1331003032129) 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, 867245 + ... + 1847733.

It is an arithmetic number, because the mean of its divisors is an integer number (96892021800).

Almost surely, 2^{1331003032121} is an apocalyptic number.

It is an amenable number.

1331003032121 is a deficient number, since it is larger than the sum of its proper divisors (219269316679).

1331003032121 is an equidigital number, since it uses as much as digits as its factorization.

1331003032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984208.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1331003032121 its reverse (1212303001331), we get a palindrome (2543306033452).

The spelling of 1331003032121 in words is "one trillion, three hundred thirty-one billion, three million, thirty-two thousand, one hundred twenty-one".