13021311121210 has 48 divisors (see below), whose sum is σ = 27284521420800. Its totient is φ = 4461258120480.

The previous prime is 13021311121207. The next prime is 13021311121213. The reversal of 13021311121210 is 1212111312031.

It is an interprime number because it is at equal distance from previous prime (13021311121207) and next prime (13021311121213).

It is not an unprimeable number, because it can be changed into a prime (13021311121213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8812026 + ... + 10183045.

It is an arithmetic number, because the mean of its divisors is an integer number (568427529600).

Almost surely, 2^{13021311121210} is an apocalyptic number.

13021311121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13021311121210 is an abundant number, since it is smaller than the sum of its proper divisors (14263210299590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13021311121210 is a wasteful number, since it uses less digits than its factorization.

13021311121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18996491 (or 18996484 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 13021311121210 its reverse (1212111312031), we get a palindrome (14233422433241).

The spelling of 13021311121210 in words is "thirteen trillion, twenty-one billion, three hundred eleven million, one hundred twenty-one thousand, two hundred ten".