23121282026 has 4 divisors (see below), whose sum is σ = 34681923042. Its totient is φ = 11560641012.

The previous prime is 23121282007. The next prime is 23121282049. The reversal of 23121282026 is 62028212132.

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., 22654765225 + 466516801 = 150515^2 + 21599^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23121282026.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5780320505 + ... + 5780320508.

Almost surely, 2^23121282026 is an apocalyptic number.

23121282026 is a deficient number, since it is larger than the sum of its proper divisors (11560641016).

23121282026 is a wasteful number, since it uses less digits than its factorization.

23121282026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11560641015.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 23121282026 its reverse (62028212132), we get a palindrome (85149494158).

The spelling of 23121282026 in words is "twenty-three billion, one hundred twenty-one million, two hundred eighty-two thousand, twenty-six".