131222332113440 has 48 divisors (see below), whose sum is σ = 310290300559512. Its totient is φ = 52441941786624.

The previous prime is 131222332113409. The next prime is 131222332113461. The reversal of 131222332113440 is 44311233222131.

It can be written as a sum of positive squares in 4 ways, for example, as 107237374380304 + 23984957733136 = 10355548^2 + 4897444^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 131222332113397 and 131222332113406.

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, 366938369 + ... + 367295808.

Almost surely, 2^{131222332113440} is an apocalyptic number.

131222332113440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131222332113440 is an abundant number, since it is smaller than the sum of its proper divisors (179067968446072).

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

131222332113440 is a wasteful number, since it uses less digits than its factorization.

131222332113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734235309 (or 734235301 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 131222332113440 its reverse (44311233222131), we get a palindrome (175533565335571).

The spelling of 131222332113440 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred thirty-two million, one hundred thirteen thousand, four hundred forty".