23121007266452 has 12 divisors (see below), whose sum is σ = 40462866345216. Its totient is φ = 11560188310680.

The previous prime is 23121007266433. The next prime is 23121007266457. The reversal of 23121007266452 is 25466270012132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121007266457) 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, 78665618 + ... + 78958985.

It is an arithmetic number, because the mean of its divisors is an integer number (3371905528768).

Almost surely, 2^{23121007266452} is an apocalyptic number.

It is an amenable number.

23121007266452 is a deficient number, since it is larger than the sum of its proper divisors (17341859078764).

23121007266452 is a wasteful number, since it uses less digits than its factorization.

23121007266452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157661278 (or 157661276 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

Adding to 23121007266452 its reverse (25466270012132), we get a palindrome (48587277278584).

The spelling of 23121007266452 in words is "twenty-three trillion, one hundred twenty-one billion, seven million, two hundred sixty-six thousand, four hundred fifty-two".