423123131022 has 16 divisors (see below), whose sum is σ = 846491095632. Its totient is φ = 141000238080.

The previous prime is 423123131021. The next prime is 423123131083. The reversal of 423123131022 is 220131321324.

It is a junction number, because it is equal to n+sod(n) for n = 423123130983 and 423123131001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423123131021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10178929 + ... + 10220412.

It is an arithmetic number, because the mean of its divisors is an integer number (52905693477).

Almost surely, 2^423123131022 is an apocalyptic number.

423123131022 is an abundant number, since it is smaller than the sum of its proper divisors (423367964610).

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

423123131022 is a wasteful number, since it uses less digits than its factorization.

423123131022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20402803.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 423123131022 its reverse (220131321324), we get a palindrome (643254452346).

The spelling of 423123131022 in words is "four hundred twenty-three billion, one hundred twenty-three million, one hundred thirty-one thousand, twenty-two".