20523114402 has 32 divisors (see below), whose sum is σ = 47279357952. Its totient is φ = 5817574224.

The previous prime is 20523114389. The next prime is 20523114421. The reversal of 20523114402 is 20441132502.

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 15 ways as a sum of consecutive naturals, for example, 1918468 + ... + 1929135.

It is an arithmetic number, because the mean of its divisors is an integer number (1477479936).

Almost surely, 2^20523114402 is an apocalyptic number.

20523114402 is an abundant number, since it is smaller than the sum of its proper divisors (26756243550).

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

20523114402 is a wasteful number, since it uses less digits than its factorization.

20523114402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3847742.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20523114402 its reverse (20441132502), we get a palindrome (40964246904).

The spelling of 20523114402 in words is "twenty billion, five hundred twenty-three million, one hundred fourteen thousand, four hundred two".