42100131431 has 8 divisors (see below), whose sum is σ = 43967179104. Its totient is φ = 40236134400.

The previous prime is 42100131427. The next prime is 42100131433. The reversal of 42100131431 is 13413100124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42100131431 - 2² = 42100131427 is a prime.

It is a super-2 number, since 2×42100131431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42100131433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734426 + ... + 789671.

It is an arithmetic number, because the mean of its divisors is an integer number (5495897388).

Almost surely, 2^42100131431 is an apocalyptic number.

42100131431 is a deficient number, since it is larger than the sum of its proper divisors (1867047673).

42100131431 is a wasteful number, since it uses less digits than its factorization.

42100131431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525321.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 42100131431 its reverse (13413100124), we get a palindrome (55513231555).

The spelling of 42100131431 in words is "forty-two billion, one hundred million, one hundred thirty-one thousand, four hundred thirty-one".