131530544422 has 4 divisors (see below), whose sum is σ = 197295816636. Its totient is φ = 65765272210.

The previous prime is 131530544407. The next prime is 131530544437. The reversal of 131530544422 is 224445035131.

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

It is an interprime number because it is at equal distance from previous prime (131530544407) and next prime (131530544437).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32882636104 + ... + 32882636107.

It is an arithmetic number, because the mean of its divisors is an integer number (49323954159).

Almost surely, 2^131530544422 is an apocalyptic number.

131530544422 is a deficient number, since it is larger than the sum of its proper divisors (65765272214).

131530544422 is an equidigital number, since it uses as much as digits as its factorization.

131530544422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65765272213.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 131530544422 its reverse (224445035131), we get a palindrome (355975579553).

The spelling of 131530544422 in words is "one hundred thirty-one billion, five hundred thirty million, five hundred forty-four thousand, four hundred twenty-two".