10202131111 has 12 divisors (see below), whose sum is σ = 10943883624. Its totient is φ = 9506710800.

The previous prime is 10202131063. The next prime is 10202131117. The reversal of 10202131111 is 11113120201.

It is a happy number.

It is not a de Polignac number, because 10202131111 - 2³¹ = 8054647463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202131091 and 10202131100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202131117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209625 + ... + 253666.

It is an arithmetic number, because the mean of its divisors is an integer number (911990302).

Almost surely, 2^10202131111 is an apocalyptic number.

10202131111 is a deficient number, since it is larger than the sum of its proper divisors (741752513).

10202131111 is an equidigital number, since it uses as much as digits as its factorization.

10202131111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463390 (or 463371 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 10202131111 its reverse (11113120201), we get a palindrome (21315251312).

The spelling of 10202131111 in words is "ten billion, two hundred two million, one hundred thirty-one thousand, one hundred eleven".