102031001111 has 4 divisors (see below), whose sum is σ = 109879539672. Its totient is φ = 94182462552.

The previous prime is 102031000937. The next prime is 102031001153. The reversal of 102031001111 is 111100130201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111100130201 = 8053 ⋅13796117.

It is a cyclic number.

It is not a de Polignac number, because 102031001111 - 2¹⁰ = 102031000087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102031001092 and 102031001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102031001311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3924269261 + ... + 3924269286.

It is an arithmetic number, because the mean of its divisors is an integer number (27469884918).

Almost surely, 2^102031001111 is an apocalyptic number.

102031001111 is a deficient number, since it is larger than the sum of its proper divisors (7848538561).

102031001111 is an equidigital number, since it uses as much as digits as its factorization.

102031001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7848538560.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 102031001111 its reverse (111100130201), we get a palindrome (213131131312).

The spelling of 102031001111 in words is "one hundred two billion, thirty-one million, one thousand, one hundred eleven".