102123132021396 has 36 divisors (see below), whose sum is σ = 258177557301300. Its totient is φ = 34036695842688.

The previous prime is 102123132021329. The next prime is 102123132021397. The reversal of 102123132021396 is 693120231321201.

102123132021396 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 2 + 31 + 320 + 213 + 96 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 64041446708100 + 38081685313296 = 8002590^2 + 6171036^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 102123132021396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102123132021397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180887761 + ... + 181451448.

It is an arithmetic number, because the mean of its divisors is an integer number (7171598813925).

Almost surely, 2^{102123132021396} is an apocalyptic number.

It is an amenable number.

102123132021396 is an abundant number, since it is smaller than the sum of its proper divisors (156054425279904).

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

102123132021396 is a wasteful number, since it uses less digits than its factorization.

102123132021396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362347048 (or 362347043 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

Adding to 102123132021396 its reverse (693120231321201), we get a palindrome (795243363342597).

The spelling of 102123132021396 in words is "one hundred two trillion, one hundred twenty-three billion, one hundred thirty-two million, twenty-one thousand, three hundred ninety-six".