1103031121013 has 24 divisors (see below), whose sum is σ = 1273239227520. Its totient is φ = 949593335040.

The previous prime is 1103031121007. The next prime is 1103031121019. The reversal of 1103031121013 is 3101211303011.

It is an interprime number because it is at equal distance from previous prime (1103031121007) and next prime (1103031121019).

It is not a de Polignac number, because 1103031121013 - 2¹⁰ = 1103031119989 is a prime.

It is a super-3 number, since 3×1103031121013³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103031120982 and 1103031121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103031121019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1758653 + ... + 2301938.

It is an arithmetic number, because the mean of its divisors is an integer number (53051634480).

Almost surely, 2^{1103031121013} is an apocalyptic number.

It is an amenable number.

1103031121013 is a deficient number, since it is larger than the sum of its proper divisors (170208106507).

1103031121013 is a wasteful number, since it uses less digits than its factorization.

1103031121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060685 (or 4060656 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1103031121013 its reverse (3101211303011), we get a palindrome (4204242424024).

The spelling of 1103031121013 in words is "one trillion, one hundred three billion, thirty-one million, one hundred twenty-one thousand, thirteen".