42431330123440 has 40 divisors (see below), whose sum is σ = 99629603373168. Its totient is φ = 16804487174400.

The previous prime is 42431330123419. The next prime is 42431330123447. The reversal of 42431330123440 is 4432103313424.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 42431330123396 and 42431330123405.

It is not an unprimeable number, because it can be changed into a prime (42431330123447) 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, 2625693042 + ... + 2625709201.

Almost surely, 2^{42431330123440} is an apocalyptic number.

42431330123440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42431330123440 is an abundant number, since it is smaller than the sum of its proper divisors (57198273249728).

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

42431330123440 is a wasteful number, since it uses less digits than its factorization.

42431330123440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5251402357 (or 5251402351 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 42431330123440 its reverse (4432103313424), we get a palindrome (46863433436864).

The spelling of 42431330123440 in words is "forty-two trillion, four hundred thirty-one billion, three hundred thirty million, one hundred twenty-three thousand, four hundred forty".