131012210212440 has 32 divisors (see below), whose sum is σ = 393036630637680. Its totient is φ = 34936589389952.

The previous prime is 131012210212337. The next prime is 131012210212459. The reversal of 131012210212440 is 44212012210131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 131012210212440.

It is a congruent number.

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, 545884209099 + ... + 545884209338.

Almost surely, 2^{131012210212440} is an apocalyptic number.

131012210212440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131012210212440 is an abundant number, since it is smaller than the sum of its proper divisors (262024420425240).

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

131012210212440 is a wasteful number, since it uses less digits than its factorization.

131012210212440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091768418451 (or 1091768418447 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 131012210212440 its reverse (44212012210131), we get a palindrome (175224222422571).

The spelling of 131012210212440 in words is "one hundred thirty-one trillion, twelve billion, two hundred ten million, two hundred twelve thousand, four hundred forty".