23120021032 has 16 divisors (see below), whose sum is σ = 44407358100. Its totient is φ = 11278058880.

The previous prime is 23120021011. The next prime is 23120021033. The reversal of 23120021032 is 23012002132.

It can be written as a sum of positive squares in 2 ways, for example, as 19865774916 + 3254246116 = 140946^2 + 57046^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23120020997 and 23120021015.

It is not an unprimeable number, because it can be changed into a prime (23120021033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35243607 + ... + 35244262.

Almost surely, 2^23120021032 is an apocalyptic number.

It is an amenable number.

23120021032 is a deficient number, since it is larger than the sum of its proper divisors (21287337068).

23120021032 is a wasteful number, since it uses less digits than its factorization.

23120021032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70487916 (or 70487912 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23120021032 its reverse (23012002132), we get a palindrome (46132023164).

The spelling of 23120021032 in words is "twenty-three billion, one hundred twenty million, twenty-one thousand, thirty-two".