131123021332 has 6 divisors (see below), whose sum is σ = 229465287338. Its totient is φ = 65561510664.

The previous prime is 131123021233. The next prime is 131123021333. The reversal of 131123021332 is 233120321131.

It can be written as a sum of positive squares in only one way, i.e., 130873191696 + 249829636 = 361764^2 + 15806^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123021333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16390377663 + ... + 16390377670.

Almost surely, 2^131123021332 is an apocalyptic number.

It is an amenable number.

131123021332 is a deficient number, since it is larger than the sum of its proper divisors (98342266006).

131123021332 is a wasteful number, since it uses less digits than its factorization.

131123021332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32780755337 (or 32780755335 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131123021332 its reverse (233120321131), we get a palindrome (364243342463).

The spelling of 131123021332 in words is "one hundred thirty-one billion, one hundred twenty-three million, twenty-one thousand, three hundred thirty-two".