23252433450021 has 12 divisors (see below), whose sum is σ = 33587270173548. Its totient is φ = 15501427596864.

The previous prime is 23252433449977. The next prime is 23252433450073. The reversal of 23252433450021 is 12005433425232.

23252433450021 is a `hidden beast` number, since 2 + 3 + 252 + 4 + 334 + 50 + 0 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14982984257796 + 8269449192225 = 3870786^2 + 2875665^2 .

It is not a de Polignac number, because 23252433450021 - 2⁶ = 23252433449957 is a prime.

It is a super-2 number, since 2×23252433450021² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23252433410021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15467040 + ... + 16903673.

It is an arithmetic number, because the mean of its divisors is an integer number (2798939181129).

Almost surely, 2^{23252433450021} is an apocalyptic number.

It is an amenable number.

23252433450021 is a deficient number, since it is larger than the sum of its proper divisors (10334836723527).

23252433450021 is a wasteful number, since it uses less digits than its factorization.

23252433450021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32450532 (or 32450529 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 23252433450021 its reverse (12005433425232), we get a palindrome (35257866875253).

The spelling of 23252433450021 in words is "twenty-three trillion, two hundred fifty-two billion, four hundred thirty-three million, four hundred fifty thousand, twenty-one".