1313221232103 has 32 divisors (see below), whose sum is σ = 1920537464832. Its totient is φ = 791561097600.

The previous prime is 1313221232101. The next prime is 1313221232137. The reversal of 1313221232103 is 3012321223131.

It is not a de Polignac number, because 1313221232103 - 2¹ = 1313221232101 is a prime.

It is a super-2 number, since 2×1313221232103² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313221232101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35007025 + ... + 35044517.

It is an arithmetic number, because the mean of its divisors is an integer number (60016795776).

Almost surely, 2^{1313221232103} is an apocalyptic number.

1313221232103 is a deficient number, since it is larger than the sum of its proper divisors (607316232729).

1313221232103 is a wasteful number, since it uses less digits than its factorization.

1313221232103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43255.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1313221232103 its reverse (3012321223131), we get a palindrome (4325542455234).

The spelling of 1313221232103 in words is "one trillion, three hundred thirteen billion, two hundred twenty-one million, two hundred thirty-two thousand, one hundred three".