102120203131 has 8 divisors (see below), whose sum is σ = 105441481728. Its totient is φ = 98800617000.

The previous prime is 102120203111. The next prime is 102120203137. The reversal of 102120203131 is 131302021201.

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

It is a cyclic number.

It is not a de Polignac number, because 102120203131 - 2⁵ = 102120203099 is a prime.

It is a super-2 number, since 2×102120203131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102120203137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299905 + ... + 542386.

It is an arithmetic number, because the mean of its divisors is an integer number (13180185216).

Almost surely, 2^102120203131 is an apocalyptic number.

102120203131 is a deficient number, since it is larger than the sum of its proper divisors (3321278597).

102120203131 is an equidigital number, since it uses as much as digits as its factorization.

102120203131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846233.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102120203131 its reverse (131302021201), we get a palindrome (233422224332).

The spelling of 102120203131 in words is "one hundred two billion, one hundred twenty million, two hundred three thousand, one hundred thirty-one".