102133312021 has 8 divisors (see below), whose sum is σ = 110107118744. Its totient is φ = 94176276480.

The previous prime is 102133312003. The next prime is 102133312027. The reversal of 102133312021 is 120213331201.

It can be written as a sum of positive squares in 4 ways, for example, as 12636008100 + 89497303921 = 112410^2 + 299161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102133312021 - 2²⁷ = 101999094293 is a prime.

It is a Duffinian number.

102133312021 is a modest number, since divided by 312021 gives 102133 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 102133312021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102133312027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4180140 + ... + 4204501.

It is an arithmetic number, because the mean of its divisors is an integer number (13763389843).

Almost surely, 2^102133312021 is an apocalyptic number.

It is an amenable number.

102133312021 is a deficient number, since it is larger than the sum of its proper divisors (7973806723).

102133312021 is an equidigital number, since it uses as much as digits as its factorization.

102133312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8385591.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 102133312021 its reverse (120213331201), we get a palindrome (222346643222).

The spelling of 102133312021 in words is "one hundred two billion, one hundred thirty-three million, three hundred twelve thousand, twenty-one".