20043352251 has 24 divisors (see below), whose sum is σ = 32021218320. Its totient is φ = 12001006656.

The previous prime is 20043352229. The next prime is 20043352261. The reversal of 20043352251 is 15225334002.

It is a happy number.

20043352251 is a `hidden beast` number, since 2 + 0 + 0 + 433 + 5 + 225 + 1 = 666.

It is not a de Polignac number, because 20043352251 - 2⁹ = 20043351739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20043352261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2310681 + ... + 2319338.

It is an arithmetic number, because the mean of its divisors is an integer number (1334217430).

Almost surely, 2^20043352251 is an apocalyptic number.

20043352251 is a deficient number, since it is larger than the sum of its proper divisors (11977866069).

20043352251 is a wasteful number, since it uses less digits than its factorization.

20043352251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4630075 (or 4630072 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 20043352251 its reverse (15225334002), we get a palindrome (35268686253).

The spelling of 20043352251 in words is "twenty billion, forty-three million, three hundred fifty-two thousand, two hundred fifty-one".