20101323102 has 32 divisors (see below), whose sum is σ = 45950976000. Its totient is φ = 5742598368.

The previous prime is 20101323097. The next prime is 20101323119. The reversal of 20101323102 is 20132310102.

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, 463024 + ... + 504572.

It is an arithmetic number, because the mean of its divisors is an integer number (1435968000).

Almost surely, 2^20101323102 is an apocalyptic number.

20101323102 is an abundant number, since it is smaller than the sum of its proper divisors (25849652898).

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

20101323102 is a wasteful number, since it uses less digits than its factorization.

20101323102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53080.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20101323102 its reverse (20132310102), we get a palindrome (40233633204).

It can be divided in two parts, 201013 and 23102, that added together give a triangular number (224115 = T₆₆₉).

The spelling of 20101323102 in words is "twenty billion, one hundred one million, three hundred twenty-three thousand, one hundred two".