42231304230131 has 4 divisors (see below), whose sum is σ = 43261336040664. Its totient is φ = 41201272419600.

The previous prime is 42231304230107. The next prime is 42231304230133. The reversal of 42231304230131 is 13103240313224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42231304230131 is a prime.

It is a super-2 number, since 2×42231304230131² (a number of 28 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 = 42231304230094 and 42231304230103.

It is not an unprimeable number, because it can be changed into a prime (42231304230133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515015905205 + ... + 515015905286.

It is an arithmetic number, because the mean of its divisors is an integer number (10815334010166).

Almost surely, 2^{42231304230131} is an apocalyptic number.

42231304230131 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42231304230131 is a deficient number, since it is larger than the sum of its proper divisors (1030031810533).

42231304230131 is a wasteful number, since it uses less digits than its factorization.

42231304230131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030031810532.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 42231304230131 its reverse (13103240313224), we get a palindrome (55334544543355).

The spelling of 42231304230131 in words is "forty-two trillion, two hundred thirty-one billion, three hundred four million, two hundred thirty thousand, one hundred thirty-one".