23120421026 has 4 divisors (see below), whose sum is σ = 34680631542. Its totient is φ = 11560210512.

The previous prime is 23120421019. The next prime is 23120421029. The reversal of 23120421026 is 62012402132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15313815001 + 7806606025 = 123749^2 + 88355^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23120420992 and 23120421010.

It is not an unprimeable number, because it can be changed into a prime (23120421029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5780105255 + ... + 5780105258.

Almost surely, 2^23120421026 is an apocalyptic number.

23120421026 is a deficient number, since it is larger than the sum of its proper divisors (11560210516).

23120421026 is a wasteful number, since it uses less digits than its factorization.

23120421026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11560210515.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 23120421026 its reverse (62012402132), we get a palindrome (85132823158).

The spelling of 23120421026 in words is "twenty-three billion, one hundred twenty million, four hundred twenty-one thousand, twenty-six".