102102311311 has 40 divisors (see below), whose sum is σ = 139936570704. Its totient is φ = 73439976960.

The previous prime is 102102311303. The next prime is 102102311347. The reversal of 102102311311 is 113113201201.

It is a happy number.

It is not a de Polignac number, because 102102311311 - 2³ = 102102311303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102317311) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 194655 + ... + 492031.

Almost surely, 2^102102311311 is an apocalyptic number.

102102311311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102102311311 is a deficient number, since it is larger than the sum of its proper divisors (37834259393).

102102311311 is an equidigital number, since it uses as much as digits as its factorization.

102102311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297429 (or 297408 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 102102311311 its reverse (113113201201), we get a palindrome (215215512512).

The spelling of 102102311311 in words is "one hundred two billion, one hundred two million, three hundred eleven thousand, three hundred eleven".