42421112431151 has 2 divisors, whose sum is σ = 42421112431152. Its totient is φ = 42421112431150.

The previous prime is 42421112431079. The next prime is 42421112431207. The reversal of 42421112431151 is 15113421112424.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42421112431151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42421112431751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21210556215575 + 21210556215576.

It is an arithmetic number, because the mean of its divisors is an integer number (21210556215576).

Almost surely, 2^{42421112431151} is an apocalyptic number.

42421112431151 is a deficient number, since it is larger than the sum of its proper divisors (1).

42421112431151 is an equidigital number, since it uses as much as digits as its factorization.

42421112431151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 32.

Adding to 42421112431151 its reverse (15113421112424), we get a palindrome (57534533543575).

The spelling of 42421112431151 in words is "forty-two trillion, four hundred twenty-one billion, one hundred twelve million, four hundred thirty-one thousand, one hundred fifty-one".