42131320344140 has 24 divisors (see below), whose sum is σ = 93680229942432. Its totient is φ = 15861202952960.

The previous prime is 42131320344137. The next prime is 42131320344149. The reversal of 42131320344140 is 4144302313124.

It is a junction number, because it is equal to n+sod(n) for n = 42131320344097 and 42131320344106.

It is not an unprimeable number, because it can be changed into a prime (42131320344149) 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, 61957823696 + ... + 61957824375.

It is an arithmetic number, because the mean of its divisors is an integer number (3903342914268).

Almost surely, 2^{42131320344140} is an apocalyptic number.

It is an amenable number.

42131320344140 is an abundant number, since it is smaller than the sum of its proper divisors (51548909598292).

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

42131320344140 is a wasteful number, since it uses less digits than its factorization.

42131320344140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123915648097 (or 123915648095 counting only the distinct ones).

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

Adding to 42131320344140 its reverse (4144302313124), we get a palindrome (46275622657264).

The spelling of 42131320344140 in words is "forty-two trillion, one hundred thirty-one billion, three hundred twenty million, three hundred forty-four thousand, one hundred forty".