102443133321 has 80 divisors (see below), whose sum is σ = 165697206400. Its totient is φ = 62854589952.

The previous prime is 102443133311. The next prime is 102443133347. The reversal of 102443133321 is 123331344201.

It is a happy number.

102443133321 is a `hidden beast` number, since 1 + 0 + 24 + 4 + 313 + 3 + 321 = 666.

It is not a de Polignac number, because 102443133321 - 2⁶ = 102443133257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (102443133311) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 57454596 + ... + 57456378.

It is an arithmetic number, because the mean of its divisors is an integer number (2071215080).

Almost surely, 2^102443133321 is an apocalyptic number.

It is an amenable number.

102443133321 is a deficient number, since it is larger than the sum of its proper divisors (63254073079).

102443133321 is a wasteful number, since it uses less digits than its factorization.

102443133321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860 (or 2851 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 102443133321 its reverse (123331344201), we get a palindrome (225774477522).

The spelling of 102443133321 in words is "one hundred two billion, four hundred forty-three million, one hundred thirty-three thousand, three hundred twenty-one".