102142441443 has 32 divisors (see below), whose sum is σ = 158023742976. Its totient is φ = 57481901568.

The previous prime is 102142441391. The next prime is 102142441447. The reversal of 102142441443 is 344144241201.

It is a happy number.

It is not a de Polignac number, because 102142441443 - 2⁹ = 102142440931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102142441443.

It is not an unprimeable number, because it can be changed into a prime (102142441447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235480 + ... + 509642.

It is an arithmetic number, because the mean of its divisors is an integer number (4938241968).

Almost surely, 2^102142441443 is an apocalyptic number.

102142441443 is a deficient number, since it is larger than the sum of its proper divisors (55881301533).

102142441443 is a wasteful number, since it uses less digits than its factorization.

102142441443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274443.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 102142441443 its reverse (344144241201), we get a palindrome (446286682644).

The spelling of 102142441443 in words is "one hundred two billion, one hundred forty-two million, four hundred forty-one thousand, four hundred forty-three".