131516532122 has 16 divisors (see below), whose sum is σ = 197748910440. Its totient is φ = 65600291328.

The previous prime is 131516532109. The next prime is 131516532127. The reversal of 131516532122 is 221235615131.

It can be written as a sum of positive squares in 4 ways, for example, as 121305227521 + 10211304601 = 348289^2 + 101051^2 .

It is not an unprimeable number, because it can be changed into a prime (131516532127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5212754 + ... + 5237922.

Almost surely, 2^131516532122 is an apocalyptic number.

131516532122 is a deficient number, since it is larger than the sum of its proper divisors (66232378318).

131516532122 is a wasteful number, since it uses less digits than its factorization.

131516532122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31345.

The product of its digits is 10800, while the sum is 32.

The spelling of 131516532122 in words is "one hundred thirty-one billion, five hundred sixteen million, five hundred thirty-two thousand, one hundred twenty-two".