131221201130 has 64 divisors (see below), whose sum is σ = 241231011840. Its totient is φ = 51381000000.

The previous prime is 131221201123. The next prime is 131221201147. The reversal of 131221201130 is 31102122131.

131221201130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 131221201099 and 131221201108.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126295151 + ... + 126296189.

It is an arithmetic number, because the mean of its divisors is an integer number (3769234560).

Almost surely, 2^131221201130 is an apocalyptic number.

131221201130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131221201130 is a deficient number, since it is larger than the sum of its proper divisors (110009810710).

131221201130 is a wasteful number, since it uses less digits than its factorization.

131221201130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 131221201130 its reverse (31102122131), we get a palindrome (162323323261).

The spelling of 131221201130 in words is "one hundred thirty-one billion, two hundred twenty-one million, two hundred one thousand, one hundred thirty".