20523012245 has 16 divisors (see below), whose sum is σ = 25178273280. Its totient is φ = 16052045184.

The previous prime is 20523012229. The next prime is 20523012253. The reversal of 20523012245 is 54221032502.

It is a cyclic number.

It is not a de Polignac number, because 20523012245 - 2⁴ = 20523012229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178136 + ... + 269774.

It is an arithmetic number, because the mean of its divisors is an integer number (1573642080).

Almost surely, 2^20523012245 is an apocalyptic number.

It is an amenable number.

20523012245 is a deficient number, since it is larger than the sum of its proper divisors (4655261035).

20523012245 is an equidigital number, since it uses as much as digits as its factorization.

20523012245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92644.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 20523012245 its reverse (54221032502), we get a palindrome (74744044747).

The spelling of 20523012245 in words is "twenty billion, five hundred twenty-three million, twelve thousand, two hundred forty-five".