42031152021 has 16 divisors (see below), whose sum is σ = 56879170560. Its totient is φ = 27603554160.

The previous prime is 42031152017. The next prime is 42031152041. The reversal of 42031152021 is 12025113024.

It is not a de Polignac number, because 42031152021 - 2² = 42031152017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031152041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95175 + ... + 305156.

It is an arithmetic number, because the mean of its divisors is an integer number (3554948160).

Almost surely, 2^42031152021 is an apocalyptic number.

It is an amenable number.

42031152021 is a deficient number, since it is larger than the sum of its proper divisors (14848018539).

42031152021 is a wasteful number, since it uses less digits than its factorization.

42031152021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400856.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 42031152021 its reverse (12025113024), we get a palindrome (54056265045).

The spelling of 42031152021 in words is "forty-two billion, thirty-one million, one hundred fifty-two thousand, twenty-one".