102443121055 has 8 divisors (see below), whose sum is σ = 134107358544. Its totient is φ = 74504088000.

The previous prime is 102443121013. The next prime is 102443121059. The reversal of 102443121055 is 550121344201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102443121055 - 2²³ = 102434732447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102443121059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931301046 + ... + 931301155.

It is an arithmetic number, because the mean of its divisors is an integer number (16763419818).

Almost surely, 2^102443121055 is an apocalyptic number.

102443121055 is a deficient number, since it is larger than the sum of its proper divisors (31664237489).

102443121055 is a wasteful number, since it uses less digits than its factorization.

102443121055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862602217.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 102443121055 its reverse (550121344201), we get a palindrome (652564465256).

The spelling of 102443121055 in words is "one hundred two billion, four hundred forty-three million, one hundred twenty-one thousand, fifty-five".