102144252442 has 32 divisors (see below), whose sum is σ = 160936740864. Its totient is φ = 48528796800.

The previous prime is 102144252439. The next prime is 102144252461. The reversal of 102144252442 is 244252441201.

It is a super-3 number, since 3×102144252442³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6678508 + ... + 6693784.

It is an arithmetic number, because the mean of its divisors is an integer number (5029273152).

Almost surely, 2^102144252442 is an apocalyptic number.

102144252442 is a deficient number, since it is larger than the sum of its proper divisors (58792488422).

102144252442 is a wasteful number, since it uses less digits than its factorization.

102144252442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16254.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 102144252442 its reverse (244252441201), we get a palindrome (346396693643).

The spelling of 102144252442 in words is "one hundred two billion, one hundred forty-four million, two hundred fifty-two thousand, four hundred forty-two".