102431221133 has 16 divisors (see below), whose sum is σ = 109991831040. Its totient is φ = 95047451136.

The previous prime is 102431221129. The next prime is 102431221159. The reversal of 102431221133 is 331122134201.

It is a cyclic number.

It is not a de Polignac number, because 102431221133 - 2² = 102431221129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102431221099 and 102431221108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102431221433) 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 15 ways as a sum of consecutive naturals, for example, 427460 + ... + 622562.

It is an arithmetic number, because the mean of its divisors is an integer number (6874489440).

Almost surely, 2^102431221133 is an apocalyptic number.

It is an amenable number.

102431221133 is a deficient number, since it is larger than the sum of its proper divisors (7560609907).

102431221133 is a wasteful number, since it uses less digits than its factorization.

102431221133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195556.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 102431221133 its reverse (331122134201), we get a palindrome (433553355334).

The spelling of 102431221133 in words is "one hundred two billion, four hundred thirty-one million, two hundred twenty-one thousand, one hundred thirty-three".