102020310311111 has 8 divisors (see below), whose sum is σ = 108042147496224. Its totient is φ = 96000766732800.

The previous prime is 102020310311047. The next prime is 102020310311113. The reversal of 102020310311111 is 111113013020201.

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 102020310311111 - 2⁶ = 102020310311047 is a prime.

It is a super-2 number, since 2×102020310311111² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102020310311111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020310311113) 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, 573310115 + ... + 573488036.

It is an arithmetic number, because the mean of its divisors is an integer number (13505268437028).

Almost surely, 2^{102020310311111} is an apocalyptic number.

102020310311111 is a deficient number, since it is larger than the sum of its proper divisors (6021837185113).

102020310311111 is a wasteful number, since it uses less digits than its factorization.

102020310311111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146803401.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 102020310311111 its reverse (111113013020201), we get a palindrome (213133323331312).

The spelling of 102020310311111 in words is "one hundred two trillion, twenty billion, three hundred ten million, three hundred eleven thousand, one hundred eleven".