131012224202440 has 32 divisors (see below), whose sum is σ = 336888576521280. Its totient is φ = 44918476869312.

The previous prime is 131012224202417. The next prime is 131012224202443. The reversal of 131012224202440 is 44202422210131.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 131012224202399 and 131012224202408.

It is not an unprimeable number, because it can be changed into a prime (131012224202443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233950400082 + ... + 233950400641.

It is an arithmetic number, because the mean of its divisors is an integer number (10527768016290).

Almost surely, 2^{131012224202440} is an apocalyptic number.

131012224202440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131012224202440 is an abundant number, since it is smaller than the sum of its proper divisors (205876352318840).

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

131012224202440 is a wasteful number, since it uses less digits than its factorization.

131012224202440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467900800741 (or 467900800737 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 131012224202440 its reverse (44202422210131), we get a palindrome (175214646412571).

The spelling of 131012224202440 in words is "one hundred thirty-one trillion, twelve billion, two hundred twenty-four million, two hundred two thousand, four hundred forty".