420156444341 has 2 divisors, whose sum is σ = 420156444342. Its totient is φ = 420156444340.

The previous prime is 420156444319. The next prime is 420156444361. The reversal of 420156444341 is 143444651024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369597123025 + 50559321316 = 607945^2 + 224854^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420156444341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420156444295 and 420156444304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420156444361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210078222170 + 210078222171.

It is an arithmetic number, because the mean of its divisors is an integer number (210078222171).

Almost surely, 2^420156444341 is an apocalyptic number.

It is an amenable number.

420156444341 is a deficient number, since it is larger than the sum of its proper divisors (1).

420156444341 is an equidigital number, since it uses as much as digits as its factorization.

420156444341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 38.

The spelling of 420156444341 in words is "four hundred twenty billion, one hundred fifty-six million, four hundred forty-four thousand, three hundred forty-one".