420331133081 has 2 divisors, whose sum is σ = 420331133082. Its totient is φ = 420331133080.

The previous prime is 420331133021. The next prime is 420331133143. The reversal of 420331133081 is 180331133024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302160195481 + 118170937600 = 549691^2 + 343760^2 .

It is a cyclic number.

It is not a de Polignac number, because 420331133081 - 2¹⁸ = 420330870937 is a prime.

It is a super-2 number, since 2×420331133081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (420331133021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210165566540 + 210165566541.

It is an arithmetic number, because the mean of its divisors is an integer number (210165566541).

Almost surely, 2^420331133081 is an apocalyptic number.

It is an amenable number.

420331133081 is a deficient number, since it is larger than the sum of its proper divisors (1).

420331133081 is an equidigital number, since it uses as much as digits as its factorization.

420331133081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 420331133081 in words is "four hundred twenty billion, three hundred thirty-one million, one hundred thirty-three thousand, eighty-one".