13421121410 has 32 divisors (see below), whose sum is σ = 26461125360. Its totient is φ = 4878426112.

The previous prime is 13421121401. The next prime is 13421121419. The reversal of 13421121410 is 1412112431.

It is an interprime number because it is at equal distance from previous prime (13421121401) and next prime (13421121419).

It can be written as a sum of positive squares in 8 ways, for example, as 11948020249 + 1473101161 = 109307^2 + 38381^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13421121419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1356239 + ... + 1366098.

Almost surely, 2^13421121410 is an apocalyptic number.

13421121410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13421121410 is a deficient number, since it is larger than the sum of its proper divisors (13040003950).

13421121410 is a wasteful number, since it uses less digits than its factorization.

13421121410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722390.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 13421121410 its reverse (1412112431), we get a palindrome (14833233841).

The spelling of 13421121410 in words is "thirteen billion, four hundred twenty-one million, one hundred twenty-one thousand, four hundred ten".