102140434211 has 4 divisors (see below), whose sum is σ = 102147780024. Its totient is φ = 102133088400.

The previous prime is 102140434183. The next prime is 102140434247. The reversal of 102140434211 is 112434041201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102140434211 - 2⁶ = 102140434147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102140434271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3652010 + ... + 3679871.

It is an arithmetic number, because the mean of its divisors is an integer number (25536945006).

Almost surely, 2^102140434211 is an apocalyptic number.

102140434211 is a deficient number, since it is larger than the sum of its proper divisors (7345813).

102140434211 is an equidigital number, since it uses as much as digits as its factorization.

102140434211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7345812.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 102140434211 its reverse (112434041201), we get a palindrome (214574475412).

The spelling of 102140434211 in words is "one hundred two billion, one hundred forty million, four hundred thirty-four thousand, two hundred eleven".