131206611522 has 16 divisors (see below), whose sum is σ = 299900826432. Its totient is φ = 37487603280.

The previous prime is 131206611517. The next prime is 131206611577. The reversal of 131206611522 is 225116602131.

It is a self number, because there is not a number n which added to its sum of digits gives 131206611522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1561983429 + ... + 1561983512.

It is an arithmetic number, because the mean of its divisors is an integer number (18743801652).

Almost surely, 2^131206611522 is an apocalyptic number.

131206611522 is an abundant number, since it is smaller than the sum of its proper divisors (168694214910).

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

131206611522 is a wasteful number, since it uses less digits than its factorization.

131206611522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123966953.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 131206611522 in words is "one hundred thirty-one billion, two hundred six million, six hundred eleven thousand, five hundred twenty-two".