102144243401 has 4 divisors (see below), whose sum is σ = 102222756804. Its totient is φ = 102065730000.

The previous prime is 102144243361. The next prime is 102144243433. The reversal of 102144243401 is 104342441201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104342441201 = 149837 ⋅696373.

It can be written as a sum of positive squares in 2 ways, for example, as 37162586176 + 64981657225 = 192776^2 + 254915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102144243401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102144249401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39254750 + ... + 39257351.

It is an arithmetic number, because the mean of its divisors is an integer number (25555689201).

Almost surely, 2^102144243401 is an apocalyptic number.

It is an amenable number.

102144243401 is a deficient number, since it is larger than the sum of its proper divisors (78513403).

102144243401 is an equidigital number, since it uses as much as digits as its factorization.

102144243401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78513402.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 102144243401 its reverse (104342441201), we get a palindrome (206486684602).

The spelling of 102144243401 in words is "one hundred two billion, one hundred forty-four million, two hundred forty-three thousand, four hundred one".