1103131023013 has 4 divisors (see below), whose sum is σ = 1161190550560. Its totient is φ = 1045071495468.

The previous prime is 1103131022999. The next prime is 1103131023019. The reversal of 1103131023013 is 3103201313011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1103131023013 - 2²¹ = 1103128925861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 58059527527 = 1103131023013 / (1 + 1 + 0 + 3 + 1 + 3 + 1 + 0 + 2 + 3 + 0 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103131023019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29029763745 + ... + 29029763782.

It is an arithmetic number, because the mean of its divisors is an integer number (290297637640).

Almost surely, 2^{1103131023013} is an apocalyptic number.

It is an amenable number.

1103131023013 is a deficient number, since it is larger than the sum of its proper divisors (58059527547).

1103131023013 is an equidigital number, since it uses as much as digits as its factorization.

1103131023013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58059527546.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1103131023013 its reverse (3103201313011), we get a palindrome (4206332336024).

The spelling of 1103131023013 in words is "one trillion, one hundred three billion, one hundred thirty-one million, twenty-three thousand, thirteen".