131022423122 has 16 divisors (see below), whose sum is σ = 199326082392. Its totient is φ = 64581298560.

The previous prime is 131022423083. The next prime is 131022423167. The reversal of 131022423122 is 221324220131.

It can be written as a sum of positive squares in 4 ways, for example, as 55220770081 + 75801653041 = 234991^2 + 275321^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66872 + ... + 516252.

Almost surely, 2^131022423122 is an apocalyptic number.

131022423122 is a deficient number, since it is larger than the sum of its proper divisors (68303659270).

131022423122 is a wasteful number, since it uses less digits than its factorization.

131022423122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451453.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 131022423122 its reverse (221324220131), we get a palindrome (352346643253).

The spelling of 131022423122 in words is "one hundred thirty-one billion, twenty-two million, four hundred twenty-three thousand, one hundred twenty-two".