102131331100201 has 4 divisors (see below), whose sum is σ = 109987587338692. Its totient is φ = 94275074861712.

The previous prime is 102131331100199. The next prime is 102131331100223. The reversal of 102131331100201 is 102001133131201.

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 20359732254976 + 81771598845225 = 4512176^2 + 9042765^2 .

It is a cyclic number.

It is not a de Polignac number, because 102131331100201 - 2¹ = 102131331100199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102131331500201) 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, 3928128119226 + ... + 3928128119251.

It is an arithmetic number, because the mean of its divisors is an integer number (27496896834673).

Almost surely, 2^{102131331100201} is an apocalyptic number.

It is an amenable number.

102131331100201 is a deficient number, since it is larger than the sum of its proper divisors (7856256238491).

102131331100201 is an equidigital number, since it uses as much as digits as its factorization.

102131331100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7856256238490.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 102131331100201 its reverse (102001133131201), we get a palindrome (204132464231402).

The spelling of 102131331100201 in words is "one hundred two trillion, one hundred thirty-one billion, three hundred thirty-one million, one hundred thousand, two hundred one".