20523311032 has 32 divisors (see below), whose sum is σ = 44121813120. Its totient is φ = 8767046880.

The previous prime is 20523311027. The next prime is 20523311069. The reversal of 20523311032 is 23011332502.

It is a junction number, because it is equal to n+sod(n) for n = 20523310994 and 20523311012.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 579694 + ... + 614077.

It is an arithmetic number, because the mean of its divisors is an integer number (1378806660).

Almost surely, 2^20523311032 is an apocalyptic number.

It is an amenable number.

20523311032 is an abundant number, since it is smaller than the sum of its proper divisors (23598502088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20523311032 is a wasteful number, since it uses less digits than its factorization.

20523311032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194091 (or 1194087 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 20523311032 its reverse (23011332502), we get a palindrome (43534643534).

The spelling of 20523311032 in words is "twenty billion, five hundred twenty-three million, three hundred eleven thousand, thirty-two".