42431002031 has 32 divisors (see below), whose sum is σ = 48423868416. Its totient is φ = 36830160000.

The previous prime is 42431002007. The next prime is 42431002039. The reversal of 42431002031 is 13020013424.

It is a cyclic number.

It is not a de Polignac number, because 42431002031 - 2¹⁴ = 42430985647 is a prime.

It is a super-2 number, since 2×42431002031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42431001994 and 42431002012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42431002039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10571381 + ... + 10575393.

It is an arithmetic number, because the mean of its divisors is an integer number (1513245888).

Almost surely, 2^42431002031 is an apocalyptic number.

42431002031 is a deficient number, since it is larger than the sum of its proper divisors (5992866385).

42431002031 is a wasteful number, since it uses less digits than its factorization.

42431002031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 42431002031 its reverse (13020013424), we get a palindrome (55451015455).

The spelling of 42431002031 in words is "forty-two billion, four hundred thirty-one million, two thousand, thirty-one".