423203132044 has 24 divisors (see below), whose sum is σ = 923352288768. Its totient is φ = 164884337040.

The previous prime is 423203131973. The next prime is 423203132101. The reversal of 423203132044 is 440231302324.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687017764 + ... + 687018379.

It is an arithmetic number, because the mean of its divisors is an integer number (38473012032).

Almost surely, 2^423203132044 is an apocalyptic number.

423203132044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

423203132044 is an abundant number, since it is smaller than the sum of its proper divisors (500149156724).

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

423203132044 is a wasteful number, since it uses less digits than its factorization.

423203132044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374036165 (or 1374036163 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 423203132044 its reverse (440231302324), we get a palindrome (863434434368).

The spelling of 423203132044 in words is "four hundred twenty-three billion, two hundred three million, one hundred thirty-two thousand, forty-four".