10223132420 has 12 divisors (see below), whose sum is σ = 21468578124. Its totient is φ = 4089252960.

The previous prime is 10223132399. The next prime is 10223132431. The reversal of 10223132420 is 2423132201.

It can be written as a sum of positive squares in 2 ways, for example, as 4420654144 + 5802478276 = 66488^2 + 76174^2 .

It is a super-3 number, since 3×10223132420³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 511156621 = 10223132420 / (1 + 0 + 2 + 2 + 3 + 1 + 3 + 2 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 10223132392 and 10223132401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255578291 + ... + 255578330.

It is an arithmetic number, because the mean of its divisors is an integer number (1789048177).

Almost surely, 2^10223132420 is an apocalyptic number.

10223132420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10223132420 is an abundant number, since it is smaller than the sum of its proper divisors (11245445704).

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

10223132420 is a wasteful number, since it uses less digits than its factorization.

10223132420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511156630 (or 511156628 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 10223132420 its reverse (2423132201), we get a palindrome (12646264621).

The spelling of 10223132420 in words is "ten billion, two hundred twenty-three million, one hundred thirty-two thousand, four hundred twenty".