420230129797 has 2 divisors, whose sum is σ = 420230129798. Its totient is φ = 420230129796.

The previous prime is 420230129729. The next prime is 420230129827. The reversal of 420230129797 is 797921032024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372333056481 + 47897073316 = 610191^2 + 218854^2 .

It is a cyclic number.

It is not a de Polignac number, because 420230129797 - 2¹¹ = 420230127749 is a prime.

It is a super-2 number, since 2×420230129797² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420230129717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210115064898 + 210115064899.

It is an arithmetic number, because the mean of its divisors is an integer number (210115064899).

Almost surely, 2^420230129797 is an apocalyptic number.

It is an amenable number.

420230129797 is a deficient number, since it is larger than the sum of its proper divisors (1).

420230129797 is an equidigital number, since it uses as much as digits as its factorization.

420230129797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 420230129797 in words is "four hundred twenty billion, two hundred thirty million, one hundred twenty-nine thousand, seven hundred ninety-seven".