1103121012013 has 16 divisors (see below), whose sum is σ = 1161760026240. Its totient is φ = 1045373719104.

The previous prime is 1103121012011. The next prime is 1103121012031. The reversal of 1103121012013 is 3102101213011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1103121012013 - 2¹ = 1103121012011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103121012011) 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, 37798495 + ... + 37827667.

It is an arithmetic number, because the mean of its divisors is an integer number (72610001640).

Almost surely, 2^{1103121012013} is an apocalyptic number.

It is an amenable number.

1103121012013 is a deficient number, since it is larger than the sum of its proper divisors (58639014227).

1103121012013 is a wasteful number, since it uses less digits than its factorization.

1103121012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44388.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1103121012013 its reverse (3102101213011), we get a palindrome (4205222225024).

The spelling of 1103121012013 in words is "one trillion, one hundred three billion, one hundred twenty-one million, twelve thousand, thirteen".