420024140251 has 16 divisors (see below), whose sum is σ = 426148594560. Its totient is φ = 413920765440.

The previous prime is 420024140227. The next prime is 420024140293. The reversal of 420024140251 is 152041420024.

It is not a de Polignac number, because 420024140251 - 2⁵ = 420024140219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420024146251) 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, 166608871 + ... + 166611391.

It is an arithmetic number, because the mean of its divisors is an integer number (26634287160).

Almost surely, 2^420024140251 is an apocalyptic number.

420024140251 is a deficient number, since it is larger than the sum of its proper divisors (6124454309).

420024140251 is a wasteful number, since it uses less digits than its factorization.

420024140251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5766.

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 420024140251 its reverse (152041420024), we get a palindrome (572065560275).

The spelling of 420024140251 in words is "four hundred twenty billion, twenty-four million, one hundred forty thousand, two hundred fifty-one".