131220114411 has 4 divisors (see below), whose sum is σ = 174960152552. Its totient is φ = 87480076272.

The previous prime is 131220114407. The next prime is 131220114419. The reversal of 131220114411 is 114411022131.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 131220114411 - 2² = 131220114407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131220114419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21870019066 + ... + 21870019071.

It is an arithmetic number, because the mean of its divisors is an integer number (43740038138).

Almost surely, 2^131220114411 is an apocalyptic number.

131220114411 is a deficient number, since it is larger than the sum of its proper divisors (43740038141).

131220114411 is an equidigital number, since it uses as much as digits as its factorization.

131220114411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43740038140.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 131220114411 its reverse (114411022131), we get a palindrome (245631136542).

The spelling of 131220114411 in words is "one hundred thirty-one billion, two hundred twenty million, one hundred fourteen thousand, four hundred eleven".