102012231111 has 8 divisors (see below), whose sum is σ = 155447209344. Its totient is φ = 58292703480.

The previous prime is 102012231103. The next prime is 102012231121. The reversal of 102012231111 is 111132210201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102012231111 - 2³ = 102012231103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012231121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2428862625 + ... + 2428862666.

It is an arithmetic number, because the mean of its divisors is an integer number (19430901168).

Almost surely, 2^102012231111 is an apocalyptic number.

102012231111 is a deficient number, since it is larger than the sum of its proper divisors (53434978233).

102012231111 is an equidigital number, since it uses as much as digits as its factorization.

102012231111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857725301.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 102012231111 its reverse (111132210201), we get a palindrome (213144441312).

The spelling of 102012231111 in words is "one hundred two billion, twelve million, two hundred thirty-one thousand, one hundred eleven".