423502261212 has 12 divisors (see below), whose sum is σ = 988171942856. Its totient is φ = 141167420400.

The previous prime is 423502261211. The next prime is 423502261213. The reversal of 423502261212 is 212162205324.

It is an interprime number because it is at equal distance from previous prime (423502261211) and next prime (423502261213).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 423502261212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423502261211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17645927539 + ... + 17645927562.

Almost surely, 2^423502261212 is an apocalyptic number.

It is an amenable number.

423502261212 is an abundant number, since it is smaller than the sum of its proper divisors (564669681644).

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

423502261212 is a wasteful number, since it uses less digits than its factorization.

423502261212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35291855108 (or 35291855106 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 423502261212 its reverse (212162205324), we get a palindrome (635664466536).

The spelling of 423502261212 in words is "four hundred twenty-three billion, five hundred two million, two hundred sixty-one thousand, two hundred twelve".