102143443331 has 4 divisors (see below), whose sum is σ = 108151881192. Its totient is φ = 96135005472.

The previous prime is 102143443309. The next prime is 102143443379. The reversal of 102143443331 is 133344341201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102143443331 is a prime.

It is a super-2 number, since 2×102143443331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102143443294 and 102143443303.

It is not an unprimeable number, because it can be changed into a prime (102143445331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3004218905 + ... + 3004218938.

It is an arithmetic number, because the mean of its divisors is an integer number (27037970298).

Almost surely, 2^102143443331 is an apocalyptic number.

102143443331 is a deficient number, since it is larger than the sum of its proper divisors (6008437861).

102143443331 is an equidigital number, since it uses as much as digits as its factorization.

102143443331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6008437860.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 102143443331 its reverse (133344341201), we get a palindrome (235487784532).

The spelling of 102143443331 in words is "one hundred two billion, one hundred forty-three million, four hundred forty-three thousand, three hundred thirty-one".