420733334501 has 2 divisors, whose sum is σ = 420733334502. Its totient is φ = 420733334500.

The previous prime is 420733334467. The next prime is 420733334507. The reversal of 420733334501 is 105433337024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380937074401 + 39796260100 = 617201^2 + 199490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420733334501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420733334507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210366667250 + 210366667251.

It is an arithmetic number, because the mean of its divisors is an integer number (210366667251).

Almost surely, 2^420733334501 is an apocalyptic number.

It is an amenable number.

420733334501 is a deficient number, since it is larger than the sum of its proper divisors (1).

420733334501 is an equidigital number, since it uses as much as digits as its factorization.

420733334501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 35.

The spelling of 420733334501 in words is "four hundred twenty billion, seven hundred thirty-three million, three hundred thirty-four thousand, five hundred one".