420600481381 has 2 divisors, whose sum is σ = 420600481382. Its totient is φ = 420600481380.

The previous prime is 420600481331. The next prime is 420600481391. The reversal of 420600481381 is 183184006024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367428733281 + 53171748100 = 606159^2 + 230590^2 .

It is a cyclic number.

It is not a de Polignac number, because 420600481381 - 2²¹ = 420598384229 is a prime.

It is a super-2 number, since 2×420600481381² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420600481381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420600481331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210300240690 + 210300240691.

It is an arithmetic number, because the mean of its divisors is an integer number (210300240691).

Almost surely, 2^420600481381 is an apocalyptic number.

It is an amenable number.

420600481381 is a deficient number, since it is larger than the sum of its proper divisors (1).

420600481381 is an equidigital number, since it uses as much as digits as its factorization.

420600481381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 420600481381 in words is "four hundred twenty billion, six hundred million, four hundred eighty-one thousand, three hundred eighty-one".