42001127431 has 8 divisors (see below), whose sum is σ = 43518319200. Its totient is φ = 40488527520.

The previous prime is 42001127429. The next prime is 42001127437. The reversal of 42001127431 is 13472110024.

42001127431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42001127431 - 2¹ = 42001127429 is a prime.

It is a super-2 number, since 2×42001127431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42001127396 and 42001127405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42001127437) 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, 1129336 + ... + 1165933.

It is an arithmetic number, because the mean of its divisors is an integer number (5439789900).

Almost surely, 2^42001127431 is an apocalyptic number.

42001127431 is a deficient number, since it is larger than the sum of its proper divisors (1517191769).

42001127431 is a wasteful number, since it uses less digits than its factorization.

42001127431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295929.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 42001127431 its reverse (13472110024), we get a palindrome (55473237455).

The spelling of 42001127431 in words is "forty-two billion, one million, one hundred twenty-seven thousand, four hundred thirty-one".