131112144440 has 32 divisors (see below), whose sum is σ = 295077762000. Its totient is φ = 52431446784.

The previous prime is 131112144431. The next prime is 131112144461. The reversal of 131112144440 is 44441211131.

It is a happy number.

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, 259970 + ... + 574289.

Almost surely, 2^131112144440 is an apocalyptic number.

131112144440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131112144440 is an abundant number, since it is smaller than the sum of its proper divisors (163965617560).

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

131112144440 is a wasteful number, since it uses less digits than its factorization.

131112144440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838199 (or 838195 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 131112144440 its reverse (44441211131), we get a palindrome (175553355571).

The spelling of 131112144440 in words is "one hundred thirty-one billion, one hundred twelve million, one hundred forty-four thousand, four hundred forty".