102331242 has 32 divisors (see below), whose sum is σ = 244896960. Its totient is φ = 31486320.

The previous prime is 102331241. The next prime is 102331259. The reversal of 102331242 is 242133201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (102331241) 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, 72184 + ... + 73587.

It is an arithmetic number, because the mean of its divisors is an integer number (7653030).

Almost surely, 2^102331242 is an apocalyptic number.

102331242 is an abundant number, since it is smaller than the sum of its proper divisors (142565718).

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

102331242 is a wasteful number, since it uses less digits than its factorization.

102331242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145795 (or 145789 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 102331242 is about 10115.8905688031. The cubic root of 102331242 is about 467.7381013288.

Adding to 102331242 its reverse (242133201), we get a palindrome (344464443).

The spelling of 102331242 in words is "one hundred two million, three hundred thirty-one thousand, two hundred forty-two".