42131013 has 8 divisors (see below), whose sum is σ = 57481248. Its totient is φ = 27434064.

The previous prime is 42130993. The next prime is 42131021. The reversal of 42131013 is 31013124.

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

It is not a de Polignac number, because 42131013 - 2⁸ = 42130757 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42130983 and 42131001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42131093) 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, 163170 + ... + 163427.

It is an arithmetic number, because the mean of its divisors is an integer number (7185156).

Almost surely, 2^42131013 is an apocalyptic number.

42131013 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42131013 is a deficient number, since it is larger than the sum of its proper divisors (15350235).

42131013 is a wasteful number, since it uses less digits than its factorization.

42131013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326643.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 42131013 is about 6490.8407005564. The cubic root of 42131013 is about 347.9637216112.

Adding to 42131013 its reverse (31013124), we get a palindrome (73144137).

The spelling of 42131013 in words is "forty-two million, one hundred thirty-one thousand, thirteen".