131221301213410 has 16 divisors (see below), whose sum is σ = 248629833878400. Its totient is φ = 49725966775536.

The previous prime is 131221301213407. The next prime is 131221301213417. The reversal of 131221301213410 is 14312103122131.

131221301213410 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (131221301213417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345319213530 + ... + 345319213909.

It is an arithmetic number, because the mean of its divisors is an integer number (15539364617400).

Almost surely, 2^{131221301213410} is an apocalyptic number.

131221301213410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131221301213410 is a deficient number, since it is larger than the sum of its proper divisors (117408532664990).

131221301213410 is a wasteful number, since it uses less digits than its factorization.

131221301213410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690638427465.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 131221301213410 its reverse (14312103122131), we get a palindrome (145533404335541).

The spelling of 131221301213410 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, three hundred one million, two hundred thirteen thousand, four hundred ten".