23203151353321 has 4 divisors (see below), whose sum is σ = 23227498837332. Its totient is φ = 23178803869312.

The previous prime is 23203151353313. The next prime is 23203151353391. The reversal of 23203151353321 is 12335315130232.

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 17918830828096 + 5284320525225 = 4233064^2 + 2298765^2 .

It is a cyclic number.

It is not a de Polignac number, because 23203151353321 - 2³ = 23203151353313 is a prime.

It is a super-3 number, since 3×23203151353321³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23203151353391) 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, 12173740576 + ... + 12173742481.

It is an arithmetic number, because the mean of its divisors is an integer number (5806874709333).

Almost surely, 2^{23203151353321} is an apocalyptic number.

It is an amenable number.

23203151353321 is a deficient number, since it is larger than the sum of its proper divisors (24347484011).

23203151353321 is an equidigital number, since it uses as much as digits as its factorization.

23203151353321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24347484010.

The product of its (nonzero) digits is 48600, while the sum is 34.

Adding to 23203151353321 its reverse (12335315130232), we get a palindrome (35538466483553).

The spelling of 23203151353321 in words is "twenty-three trillion, two hundred three billion, one hundred fifty-one million, three hundred fifty-three thousand, three hundred twenty-one".