131223041034440 has 32 divisors (see below), whose sum is σ = 295770738411000. Its totient is φ = 52396968221184.

The previous prime is 131223041034403. The next prime is 131223041034457. The reversal of 131223041034440 is 44430140322131.

It can be written as a sum of positive squares in 4 ways, for example, as 97642105485604 + 33580935548836 = 9881402^2 + 5794906^2 .

It is a super-2 number, since 2×131223041034440² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131223041034397 and 131223041034406.

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, 2882732975 + ... + 2882778494.

Almost surely, 2^{131223041034440} is an apocalyptic number.

131223041034440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131223041034440 is an abundant number, since it is smaller than the sum of its proper divisors (164547697376560).

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

131223041034440 is a wasteful number, since it uses less digits than its factorization.

131223041034440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5765512049 (or 5765512045 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 131223041034440 its reverse (44430140322131), we get a palindrome (175653181356571).

The spelling of 131223041034440 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, forty-one million, thirty-four thousand, four hundred forty".