23120231464553 has 4 divisors (see below), whose sum is σ = 23123919496260. Its totient is φ = 23116543432848.

The previous prime is 23120231464549. The next prime is 23120231464573. The reversal of 23120231464553 is 35546413202132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3314100098089 + 19806131366464 = 1820467^2 + 4450408^2 .

It is a cyclic number.

It is not a de Polignac number, because 23120231464553 - 2² = 23120231464549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23120231464553.

It is not an unprimeable number, because it can be changed into a prime (23120231464573) 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, 1844006450 + ... + 1844018987.

It is an arithmetic number, because the mean of its divisors is an integer number (5780979874065).

Almost surely, 2^{23120231464553} is an apocalyptic number.

It is an amenable number.

23120231464553 is a deficient number, since it is larger than the sum of its proper divisors (3688031707).

23120231464553 is an equidigital number, since it uses as much as digits as its factorization.

23120231464553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688031706.

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 23120231464553 its reverse (35546413202132), we get a palindrome (58666644666685).

The spelling of 23120231464553 in words is "twenty-three trillion, one hundred twenty billion, two hundred thirty-one million, four hundred sixty-four thousand, five hundred fifty-three".