420230134221 has 16 divisors (see below), whose sum is σ = 571221491904. Its totient is φ = 274702448384.

The previous prime is 420230134153. The next prime is 420230134277. The reversal of 420230134221 is 122431032024.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420230134221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420230134191 and 420230134200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420230134021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527676 + ... + 1057781.

It is an arithmetic number, because the mean of its divisors is an integer number (35701343244).

Almost surely, 2^420230134221 is an apocalyptic number.

It is an amenable number.

420230134221 is a deficient number, since it is larger than the sum of its proper divisors (150991357683).

420230134221 is a wasteful number, since it uses less digits than its factorization.

420230134221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587180.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 420230134221 its reverse (122431032024), we get a palindrome (542661166245).

The spelling of 420230134221 in words is "four hundred twenty billion, two hundred thirty million, one hundred thirty-four thousand, two hundred twenty-one".