102100322021213 has 4 divisors (see below), whose sum is σ = 102127411524060. Its totient is φ = 102073232518368.

The previous prime is 102100322021207. The next prime is 102100322021233. The reversal of 102100322021213 is 312120223001201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62489372820484 + 39610949200729 = 7905022^2 + 6293723^2 .

It is a cyclic number.

It is not a de Polignac number, because 102100322021213 - 2⁶ = 102100322021149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100322021233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13544745770 + ... + 13544753307.

It is an arithmetic number, because the mean of its divisors is an integer number (25531852881015).

Almost surely, 2^{102100322021213} is an apocalyptic number.

It is an amenable number.

102100322021213 is a deficient number, since it is larger than the sum of its proper divisors (27089502847).

102100322021213 is an equidigital number, since it uses as much as digits as its factorization.

102100322021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27089502846.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 102100322021213 its reverse (312120223001201), we get a palindrome (414220545022414).

The spelling of 102100322021213 in words is "one hundred two trillion, one hundred billion, three hundred twenty-two million, twenty-one thousand, two hundred thirteen".