13103112021 has 8 divisors (see below), whose sum is σ = 18073258080. Its totient is φ = 8434186992.

The previous prime is 13103112017. The next prime is 13103112053. The reversal of 13103112021 is 12021130131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13103112021 - 2² = 13103112017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103112221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75305155 + ... + 75305328.

It is an arithmetic number, because the mean of its divisors is an integer number (2259157260).

Almost surely, 2^13103112021 is an apocalyptic number.

It is an amenable number.

13103112021 is a deficient number, since it is larger than the sum of its proper divisors (4970146059).

13103112021 is a wasteful number, since it uses less digits than its factorization.

13103112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150610515.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13103112021 its reverse (12021130131), we get a palindrome (25124242152).

The spelling of 13103112021 in words is "thirteen billion, one hundred three million, one hundred twelve thousand, twenty-one".