423021422431212 has 48 divisors (see below), whose sum is σ = 1076784770057472. Its totient is φ = 128187956553280.

The previous prime is 423021422431193. The next prime is 423021422431241. The reversal of 423021422431212 is 212134224120324.

It is a super-2 number, since 2×423021422431212² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45819193 + ... + 54271919.

It is an arithmetic number, because the mean of its divisors is an integer number (22433016042864).

Almost surely, 2^{423021422431212} is an apocalyptic number.

It is an amenable number.

423021422431212 is an abundant number, since it is smaller than the sum of its proper divisors (653763347626260).

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

423021422431212 is a wasteful number, since it uses less digits than its factorization.

423021422431212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8831878 (or 8831876 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 423021422431212 its reverse (212134224120324), we get a palindrome (635155646551536).

The spelling of 423021422431212 in words is "four hundred twenty-three trillion, twenty-one billion, four hundred twenty-two million, four hundred thirty-one thousand, two hundred twelve".