13103010321221 has 16 divisors (see below), whose sum is σ = 14172724949760. Its totient is φ = 12066651640320.

The previous prime is 13103010321197. The next prime is 13103010321227. The reversal of 13103010321221 is 12212301030131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13103010321221 - 2³⁰ = 13101936579397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13103010321193 and 13103010321202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103010321227) 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, 835886 + ... + 5186976.

It is an arithmetic number, because the mean of its divisors is an integer number (885795309360).

Almost surely, 2^{13103010321221} is an apocalyptic number.

It is an amenable number.

13103010321221 is a deficient number, since it is larger than the sum of its proper divisors (1069714628539).

13103010321221 is a wasteful number, since it uses less digits than its factorization.

13103010321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4354924.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13103010321221 its reverse (12212301030131), we get a palindrome (25315311351352).

The spelling of 13103010321221 in words is "thirteen trillion, one hundred three billion, ten million, three hundred twenty-one thousand, two hundred twenty-one".