13213012032121 has 4 divisors (see below), whose sum is σ = 14414194944144. Its totient is φ = 12011829120100.

The previous prime is 13213012032107. The next prime is 13213012032133. The reversal of 13213012032121 is 12123021031231.

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 13213012032121 - 2¹⁷ = 13213011901049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13213012032092 and 13213012032101.

It is not an unprimeable number, because it can be changed into a prime (13213012032821) 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, 600591455995 + ... + 600591456016.

It is an arithmetic number, because the mean of its divisors is an integer number (3603548736036).

Almost surely, 2^{13213012032121} is an apocalyptic number.

13213012032121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13213012032121 is a deficient number, since it is larger than the sum of its proper divisors (1201182912023).

13213012032121 is a wasteful number, since it uses less digits than its factorization.

13213012032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201182912022.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13213012032121 its reverse (12123021031231), we get a palindrome (25336033063352).

The spelling of 13213012032121 in words is "thirteen trillion, two hundred thirteen billion, twelve million, thirty-two thousand, one hundred twenty-one".