131200243422 has 48 divisors (see below), whose sum is σ = 265428938880. Its totient is φ = 43234223904.

The previous prime is 131200243403. The next prime is 131200243429. The reversal of 131200243422 is 224342002131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131200243392 and 131200243401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131200243429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35855029 + ... + 35858687.

It is an arithmetic number, because the mean of its divisors is an integer number (5529769560).

Almost surely, 2^131200243422 is an apocalyptic number.

131200243422 is an abundant number, since it is smaller than the sum of its proper divisors (134228695458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131200243422 is a wasteful number, since it uses less digits than its factorization.

131200243422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385 (or 4276 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 131200243422 its reverse (224342002131), we get a palindrome (355542245553).

The spelling of 131200243422 in words is "one hundred thirty-one billion, two hundred million, two hundred forty-three thousand, four hundred twenty-two".