102312142 has 16 divisors (see below), whose sum is σ = 160624800. Its totient is φ = 48784032.

The previous prime is 102312139. The next prime is 102312143. The reversal of 102312142 is 241213201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102312143) 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, 12868 + ... + 19240.

It is an arithmetic number, because the mean of its divisors is an integer number (10039050).

Almost surely, 2^102312142 is an apocalyptic number.

102312142 is a deficient number, since it is larger than the sum of its proper divisors (58312658).

102312142 is a wasteful number, since it uses less digits than its factorization.

102312142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6747.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 102312142 is about 10114.9464655034. The cubic root of 102312142 is about 467.7089986050.

Adding to 102312142 its reverse (241213201), we get a palindrome (343525343).

The spelling of 102312142 in words is "one hundred two million, three hundred twelve thousand, one hundred forty-two".