1331013112403 has 16 divisors (see below), whose sum is σ = 1461711515040. Its totient is φ = 1204399632384.

The previous prime is 1331013112399. The next prime is 1331013112463. The reversal of 1331013112403 is 3042113101331.

It is not a de Polignac number, because 1331013112403 - 2² = 1331013112399 is a prime.

It is a super-2 number, since 2×1331013112403² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331013112463) 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 15 ways as a sum of consecutive naturals, for example, 43313 + ... + 1632146.

It is an arithmetic number, because the mean of its divisors is an integer number (91356969690).

Almost surely, 2^{1331013112403} is an apocalyptic number.

1331013112403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1331013112403 is a deficient number, since it is larger than the sum of its proper divisors (130698402637).

1331013112403 is a wasteful number, since it uses less digits than its factorization.

1331013112403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676678.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1331013112403 its reverse (3042113101331), we get a palindrome (4373126213734).

The spelling of 1331013112403 in words is "one trillion, three hundred thirty-one billion, thirteen million, one hundred twelve thousand, four hundred three".