20331121013313 has 16 divisors (see below), whose sum is σ = 29572629806016. Its totient is φ = 12321853960640.

The previous prime is 20331121013311. The next prime is 20331121013327. The reversal of 20331121013313 is 31331012113302.

It is a cyclic number.

It is not a de Polignac number, because 20331121013313 - 2¹ = 20331121013311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20331121013311) 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, 13250095 + ... + 14704667.

It is an arithmetic number, because the mean of its divisors is an integer number (1848289362876).

Almost surely, 2^{20331121013313} is an apocalyptic number.

It is an amenable number.

20331121013313 is a deficient number, since it is larger than the sum of its proper divisors (9241508792703).

20331121013313 is a wasteful number, since it uses less digits than its factorization.

20331121013313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878144.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 20331121013313 its reverse (31331012113302), we get a palindrome (51662133126615).

The spelling of 20331121013313 in words is "twenty trillion, three hundred thirty-one billion, one hundred twenty-one million, thirteen thousand, three hundred thirteen".