151424205421 has 2 divisors, whose sum is σ = 151424205422. Its totient is φ = 151424205420.

The previous prime is 151424205419. The next prime is 151424205431. The reversal of 151424205421 is 124502424151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121163863396 + 30260342025 = 348086^2 + 173955^2 .

It is a cyclic number.

It is not a de Polignac number, because 151424205421 - 2¹ = 151424205419 is a prime.

Together with 151424205419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151424205431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75712102710 + 75712102711.

It is an arithmetic number, because the mean of its divisors is an integer number (75712102711).

Almost surely, 2^151424205421 is an apocalyptic number.

It is an amenable number.

151424205421 is a deficient number, since it is larger than the sum of its proper divisors (1).

151424205421 is an equidigital number, since it uses as much as digits as its factorization.

151424205421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 151424205421 its reverse (124502424151), we get a palindrome (275926629572).

The spelling of 151424205421 in words is "one hundred fifty-one billion, four hundred twenty-four million, two hundred five thousand, four hundred twenty-one".