23250004121 has 4 divisors (see below), whose sum is σ = 23254119732. Its totient is φ = 23245888512.

The previous prime is 23250004109. The next prime is 23250004147. The reversal of 23250004121 is 12140005232.

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 13828584025 + 9421420096 = 117595^2 + 97064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23250004121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23250004093 and 23250004102.

It is not an unprimeable number, because it can be changed into a prime (23250004021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2049320 + ... + 2060633.

It is an arithmetic number, because the mean of its divisors is an integer number (5813529933).

Almost surely, 2^23250004121 is an apocalyptic number.

It is an amenable number.

23250004121 is a deficient number, since it is larger than the sum of its proper divisors (4115611).

23250004121 is an equidigital number, since it uses as much as digits as its factorization.

23250004121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115610.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 23250004121 its reverse (12140005232), we get a palindrome (35390009353).

The spelling of 23250004121 in words is "twenty-three billion, two hundred fifty million, four thousand, one hundred twenty-one".