102110831142 has 32 divisors (see below), whose sum is σ = 213182558208. Its totient is φ = 32544595776.

The previous prime is 102110831107. The next prime is 102110831167. The reversal of 102110831142 is 241138011201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222843 + ... + 503865.

It is an arithmetic number, because the mean of its divisors is an integer number (6661954944).

Almost surely, 2^102110831142 is an apocalyptic number.

102110831142 is an abundant number, since it is smaller than the sum of its proper divisors (111071727066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102110831142 is a wasteful number, since it uses less digits than its factorization.

102110831142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283684.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 102110831142 its reverse (241138011201), we get a palindrome (343248842343).

The spelling of 102110831142 in words is "one hundred two billion, one hundred ten million, eight hundred thirty-one thousand, one hundred forty-two".