23132003420 has 24 divisors (see below), whose sum is σ = 48828910704. Its totient is φ = 9204857856.

The previous prime is 23132003413. The next prime is 23132003423. The reversal of 23132003420 is 2430023132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23132003392 and 23132003401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23132003423) 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 7 ways as a sum of consecutive naturals, for example, 2992514 + ... + 3000233.

It is an arithmetic number, because the mean of its divisors is an integer number (2034537946).

Almost surely, 2^23132003420 is an apocalyptic number.

23132003420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23132003420 is an abundant number, since it is smaller than the sum of its proper divisors (25696907284).

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

23132003420 is a wasteful number, since it uses less digits than its factorization.

23132003420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992949 (or 5992947 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23132003420 its reverse (2430023132), we get a palindrome (25562026552).

The spelling of 23132003420 in words is "twenty-three billion, one hundred thirty-two million, three thousand, four hundred twenty".