23111421036 has 96 divisors (see below), whose sum is σ = 60603137280. Its totient is φ = 6794188800.

The previous prime is 23111421031. The next prime is 23111421043. The reversal of 23111421036 is 63012411132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23111420997 and 23111421015.

It is not an unprimeable number, because it can be changed into a prime (23111421031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 956820 + ... + 980676.

It is an arithmetic number, because the mean of its divisors is an integer number (631282680).

Almost surely, 2^23111421036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23111421036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30301568640).

23111421036 is an abundant number, since it is smaller than the sum of its proper divisors (37491716244).

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

23111421036 is a wasteful number, since it uses less digits than its factorization.

23111421036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24095 (or 24093 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 23111421036 its reverse (63012411132), we get a palindrome (86123832168).

The spelling of 23111421036 in words is "twenty-three billion, one hundred eleven million, four hundred twenty-one thousand, thirty-six".