20513425332102 has 32 divisors (see below), whose sum is σ = 41701272733440. Its totient is φ = 6725414716320.

The previous prime is 20513425332067. The next prime is 20513425332107. The reversal of 20513425332102 is 20123352431502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20513425332107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7090063 + ... + 9554885.

It is an arithmetic number, because the mean of its divisors is an integer number (1303164772920).

Almost surely, 2^{20513425332102} is an apocalyptic number.

20513425332102 is an abundant number, since it is smaller than the sum of its proper divisors (21187847401338).

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

20513425332102 is a wasteful number, since it uses less digits than its factorization.

20513425332102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487628.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 20513425332102 its reverse (20123352431502), we get a palindrome (40636777763604).

The spelling of 20513425332102 in words is "twenty trillion, five hundred thirteen billion, four hundred twenty-five million, three hundred thirty-two thousand, one hundred two".