423240213121012 has 48 divisors (see below), whose sum is σ = 866922193755520. Its totient is φ = 177059516516352.

The previous prime is 423240213121007. The next prime is 423240213121013. The reversal of 423240213121012 is 210121312042324.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423240213121013) 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, 1067145462 + ... + 1067541997.

Almost surely, 2^{423240213121012} is an apocalyptic number.

It is an amenable number.

423240213121012 is an abundant number, since it is smaller than the sum of its proper divisors (443681980634508).

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

423240213121012 is a wasteful number, since it uses less digits than its factorization.

423240213121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134687640 (or 2134687638 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 423240213121012 its reverse (210121312042324), we get a palindrome (633361525163336).

The spelling of 423240213121012 in words is "four hundred twenty-three trillion, two hundred forty billion, two hundred thirteen million, one hundred twenty-one thousand, twelve".