102042311 has 16 divisors (see below), whose sum is σ = 121887744. Its totient is φ = 83601504.

The previous prime is 102042299. The next prime is 102042349. The reversal of 102042311 is 113240201.

It is not a de Polignac number, because 102042311 - 2¹⁰ = 102041287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102042361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10541 + ... + 17753.

It is an arithmetic number, because the mean of its divisors is an integer number (7617984).

Almost surely, 2^102042311 is an apocalyptic number.

102042311 is a deficient number, since it is larger than the sum of its proper divisors (19845433).

102042311 is an equidigital number, since it uses as much as digits as its factorization.

102042311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7310.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 102042311 is about 10101.5994278134. The cubic root of 102042311 is about 467.2974687741.

Adding to 102042311 its reverse (113240201), we get a palindrome (215282512).

The spelling of 102042311 in words is "one hundred two million, forty-two thousand, three hundred eleven".