23451222423553 has 4 divisors (see below), whose sum is σ = 23451253768260. Its totient is φ = 23451191078848.

The previous prime is 23451222423533. The next prime is 23451222423569. The reversal of 23451222423553 is 35532422215432.

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 984494575089 + 22466727848464 = 992217^2 + 4739908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23451222423553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23451222423533) 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, 14521948 + ... + 16055821.

It is an arithmetic number, because the mean of its divisors is an integer number (5862813442065).

Almost surely, 2^{23451222423553} is an apocalyptic number.

It is an amenable number.

23451222423553 is a deficient number, since it is larger than the sum of its proper divisors (31344707).

23451222423553 is an equidigital number, since it uses as much as digits as its factorization.

23451222423553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31344706.

The product of its digits is 1728000, while the sum is 43.

Adding to 23451222423553 its reverse (35532422215432), we get a palindrome (58983644638985).

The spelling of 23451222423553 in words is "twenty-three trillion, four hundred fifty-one billion, two hundred twenty-two million, four hundred twenty-three thousand, five hundred fifty-three".