420423142142212 has 12 divisors (see below), whose sum is σ = 802625998635216. Its totient is φ = 191101428246440.

The previous prime is 420423142142167. The next prime is 420423142142231. The reversal of 420423142142212 is 212241241324024.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4777535706118 + ... + 4777535706205.

It is an arithmetic number, because the mean of its divisors is an integer number (66885499886268).

Almost surely, 2^{420423142142212} is an apocalyptic number.

It is an amenable number.

420423142142212 is a deficient number, since it is larger than the sum of its proper divisors (382202856493004).

420423142142212 is a wasteful number, since it uses less digits than its factorization.

420423142142212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9555071412338 (or 9555071412336 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 420423142142212 its reverse (212241241324024), we get a palindrome (632664383466236).

The spelling of 420423142142212 in words is "four hundred twenty trillion, four hundred twenty-three billion, one hundred forty-two million, one hundred forty-two thousand, two hundred twelve".