1331320343103 has 48 divisors (see below), whose sum is σ = 2040810033600. Its totient is φ = 833423109120.

The previous prime is 1331320343083. The next prime is 1331320343153. The reversal of 1331320343103 is 3013430231331.

1331320343103 is a `hidden beast` number, since 1 + 3 + 313 + 2 + 0 + 34 + 310 + 3 = 666.

It is not a de Polignac number, because 1331320343103 - 2¹⁴ = 1331320326719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331320343153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 164987953 + ... + 164996021.

It is an arithmetic number, because the mean of its divisors is an integer number (42516875700).

Almost surely, 2^{1331320343103} is an apocalyptic number.

1331320343103 is a deficient number, since it is larger than the sum of its proper divisors (709489690497).

1331320343103 is a wasteful number, since it uses less digits than its factorization.

1331320343103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10432 (or 10429 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 1331320343103 its reverse (3013430231331), we get a palindrome (4344750574434).

The spelling of 1331320343103 in words is "one trillion, three hundred thirty-one billion, three hundred twenty million, three hundred forty-three thousand, one hundred three".