42021430151 has 2 divisors, whose sum is σ = 42021430152. Its totient is φ = 42021430150.

The previous prime is 42021430103. The next prime is 42021430211. The reversal of 42021430151 is 15103412024.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42021430151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42021430051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21010715075 + 21010715076.

It is an arithmetic number, because the mean of its divisors is an integer number (21010715076).

Almost surely, 2^42021430151 is an apocalyptic number.

42021430151 is a deficient number, since it is larger than the sum of its proper divisors (1).

42021430151 is an equidigital number, since it uses as much as digits as its factorization.

42021430151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 42021430151 its reverse (15103412024), we get a palindrome (57124842175).

The spelling of 42021430151 in words is "forty-two billion, twenty-one million, four hundred thirty thousand, one hundred fifty-one".