1313033021103 has 16 divisors (see below), whose sum is σ = 1754940712320. Its totient is φ = 873242288736.

The previous prime is 1313033021101. The next prime is 1313033021149. The reversal of 1313033021103 is 3011203303131.

It is not a de Polignac number, because 1313033021103 - 2¹ = 1313033021101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1313033021103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313033021101) 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, 2462676 + ... + 2948022.

It is an arithmetic number, because the mean of its divisors is an integer number (109683794520).

Almost surely, 2^{1313033021103} is an apocalyptic number.

1313033021103 is a deficient number, since it is larger than the sum of its proper divisors (441907691217).

1313033021103 is a wasteful number, since it uses less digits than its factorization.

1313033021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487526.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 1313033021103 its reverse (3011203303131), we get a palindrome (4324236324234).

The spelling of 1313033021103 in words is "one trillion, three hundred thirteen billion, thirty-three million, twenty-one thousand, one hundred three".