131211113219 has 4 divisors (see below), whose sum is σ = 132685395480. Its totient is φ = 129736830960.

The previous prime is 131211113213. The next prime is 131211113221. The reversal of 131211113219 is 912311112131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 912311112131 = 61 ⋅14955919871.

It is a cyclic number.

It is not a de Polignac number, because 131211113219 - 2⁴ = 131211113203 is a prime.

It is a super-2 number, since 2×131211113219² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131211113213) 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, 737140997 + ... + 737141174.

It is an arithmetic number, because the mean of its divisors is an integer number (33171348870).

Almost surely, 2^131211113219 is an apocalyptic number.

131211113219 is a deficient number, since it is larger than the sum of its proper divisors (1474282261).

131211113219 is an equidigital number, since it uses as much as digits as its factorization.

131211113219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474282260.

The product of its digits is 324, while the sum is 26.

The spelling of 131211113219 in words is "one hundred thirty-one billion, two hundred eleven million, one hundred thirteen thousand, two hundred nineteen".