423102131320 has 128 divisors (see below), whose sum is σ = 1096735127040. Its totient is φ = 145392586240.

The previous prime is 423102131317. The next prime is 423102131323. The reversal of 423102131320 is 23131201324.

It is an interprime number because it is at equal distance from previous prime (423102131317) and next prime (423102131323).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 423102131291 and 423102131300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423102131323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 588102 + ... + 1091818.

It is an arithmetic number, because the mean of its divisors is an integer number (8568243180).

Almost surely, 2^423102131320 is an apocalyptic number.

423102131320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423102131320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548367563520).

423102131320 is an abundant number, since it is smaller than the sum of its proper divisors (673632995720).

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

423102131320 is a wasteful number, since it uses less digits than its factorization.

423102131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503845 (or 503841 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 423102131320 its reverse (23131201324), we get a palindrome (446233332644).

The spelling of 423102131320 in words is "four hundred twenty-three billion, one hundred two million, one hundred thirty-one thousand, three hundred twenty".