420315343253 has 6 divisors (see below), whose sum is σ = 455134365954. Its totient is φ = 387983393616.

The previous prime is 420315343219. The next prime is 420315343313. The reversal of 420315343253 is 352343513024.

It can be written as a sum of positive squares in 3 ways, for example, as 5279184964 + 415036158289 = 72658^2 + 644233^2 .

It is not a de Polignac number, because 420315343253 - 2²² = 420311148949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420315348253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1243536350 + ... + 1243536687.

It is an arithmetic number, because the mean of its divisors is an integer number (75855727659).

Almost surely, 2^420315343253 is an apocalyptic number.

It is an amenable number.

420315343253 is a deficient number, since it is larger than the sum of its proper divisors (34819022701).

420315343253 is a wasteful number, since it uses less digits than its factorization.

420315343253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487073063 (or 2487073050 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 420315343253 its reverse (352343513024), we get a palindrome (772658856277).

The spelling of 420315343253 in words is "four hundred twenty billion, three hundred fifteen million, three hundred forty-three thousand, two hundred fifty-three".