420403044331212 has 24 divisors (see below), whose sum is σ = 981048197154816. Its totient is φ = 140118953770128.

The previous prime is 420403044331181. The next prime is 420403044331213. The reversal of 420403044331212 is 212133440304024.

It is not an unprimeable number, because it can be changed into a prime (420403044331213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1924178748 + ... + 1924397219.

It is an arithmetic number, because the mean of its divisors is an integer number (40877008214784).

Almost surely, 2^{420403044331212} is an apocalyptic number.

It is an amenable number.

420403044331212 is an abundant number, since it is smaller than the sum of its proper divisors (560645152823604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420403044331212 is a wasteful number, since it uses less digits than its factorization.

420403044331212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3848585077 (or 3848585075 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 420403044331212 its reverse (212133440304024), we get a palindrome (632536484635236).

The spelling of 420403044331212 in words is "four hundred twenty trillion, four hundred three billion, forty-four million, three hundred thirty-one thousand, two hundred twelve".