102442133321 has 8 divisors (see below), whose sum is σ = 112678651488. Its totient is φ = 93129210900.

The previous prime is 102442133293. The next prime is 102442133323. The reversal of 102442133321 is 123331244201.

It is not a de Polignac number, because 102442133321 - 2¹⁰ = 102442132297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102442133323) 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, 38481815 + ... + 38484476.

It is an arithmetic number, because the mean of its divisors is an integer number (14084831436).

Almost surely, 2^102442133321 is an apocalyptic number.

102442133321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102442133321 is a deficient number, since it is larger than the sum of its proper divisors (10236518167).

102442133321 is an frugal number, since it uses more digits than its factorization.

102442133321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76966324 (or 76966302 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 102442133321 its reverse (123331244201), we get a palindrome (225773377522).

The spelling of 102442133321 in words is "one hundred two billion, four hundred forty-two million, one hundred thirty-three thousand, three hundred twenty-one".