102523343442 has 32 divisors (see below), whose sum is σ = 220832111808. Its totient is φ = 31543843776.

The previous prime is 102523343413. The next prime is 102523343449. The reversal of 102523343442 is 244343325201.

It is a super-2 number, since 2×102523343442² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102523343449) 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, 2152093 + ... + 2199215.

It is an arithmetic number, because the mean of its divisors is an integer number (6901003494).

Almost surely, 2^102523343442 is an apocalyptic number.

102523343442 is an abundant number, since it is smaller than the sum of its proper divisors (118308768366).

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

102523343442 is a wasteful number, since it uses less digits than its factorization.

102523343442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75034.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 102523343442 its reverse (244343325201), we get a palindrome (346866668643).

The spelling of 102523343442 in words is "one hundred two billion, five hundred twenty-three million, three hundred forty-three thousand, four hundred forty-two".