420315234451501 has 2 divisors, whose sum is σ = 420315234451502. Its totient is φ = 420315234451500.

The previous prime is 420315234451451. The next prime is 420315234451537. The reversal of 420315234451501 is 105154432513024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343356267515625 + 76958966935876 = 18529875^2 + 8772626^2 .

It is a cyclic number.

It is not a de Polignac number, because 420315234451501 - 2²⁵ = 420315200897069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420315234451591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210157617225750 + 210157617225751.

It is an arithmetic number, because the mean of its divisors is an integer number (210157617225751).

Almost surely, 2^{420315234451501} is an apocalyptic number.

It is an amenable number.

420315234451501 is a deficient number, since it is larger than the sum of its proper divisors (1).

420315234451501 is an equidigital number, since it uses as much as digits as its factorization.

420315234451501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 420315234451501 its reverse (105154432513024), we get a palindrome (525469666964525).

The spelling of 420315234451501 in words is "four hundred twenty trillion, three hundred fifteen billion, two hundred thirty-four million, four hundred fifty-one thousand, five hundred one".