42121231041 has 16 divisors (see below), whose sum is σ = 59991516864. Its totient is φ = 26195119104.

The previous prime is 42121231039. The next prime is 42121231093. The reversal of 42121231041 is 14013212124.

It is not a de Polignac number, because 42121231041 - 2¹ = 42121231039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42121230999 and 42121231017.

It is not an unprimeable number, because it can be changed into a prime (42121231001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3648691 + ... + 3660216.

It is an arithmetic number, because the mean of its divisors is an integer number (3749469804).

Almost surely, 2^42121231041 is an apocalyptic number.

It is an amenable number.

42121231041 is a deficient number, since it is larger than the sum of its proper divisors (17870285823).

42121231041 is a wasteful number, since it uses less digits than its factorization.

42121231041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7309040.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 42121231041 its reverse (14013212124), we get a palindrome (56134443165).

The spelling of 42121231041 in words is "forty-two billion, one hundred twenty-one million, two hundred thirty-one thousand, forty-one".