20523251302 has 16 divisors (see below), whose sum is σ = 32870407680. Its totient is φ = 9587200392.

The previous prime is 20523251257. The next prime is 20523251339. The reversal of 20523251302 is 20315232502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5185902 + ... + 5189857.

It is an arithmetic number, because the mean of its divisors is an integer number (2054400480).

Almost surely, 2^20523251302 is an apocalyptic number.

20523251302 is a deficient number, since it is larger than the sum of its proper divisors (12347156378).

20523251302 is a wasteful number, since it uses less digits than its factorization.

20523251302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10375827.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20523251302 its reverse (20315232502), we get a palindrome (40838483804).

The spelling of 20523251302 in words is "twenty billion, five hundred twenty-three million, two hundred fifty-one thousand, three hundred two".