102143101652221 has 16 divisors (see below), whose sum is σ = 116806013026560. Its totient is φ = 87497965094400.

The previous prime is 102143101652177. The next prime is 102143101652227. The reversal of 102143101652221 is 122256101341201.

It is not a de Polignac number, because 102143101652221 - 2³⁷ = 102005662698749 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 (102143101652227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82186125 + ... + 83419693.

It is an arithmetic number, because the mean of its divisors is an integer number (7300375814160).

Almost surely, 2^{102143101652221} is an apocalyptic number.

It is an amenable number.

102143101652221 is a deficient number, since it is larger than the sum of its proper divisors (14662911374339).

102143101652221 is a wasteful number, since it uses less digits than its factorization.

102143101652221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240764.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 102143101652221 its reverse (122256101341201), we get a palindrome (224399202993422).

The spelling of 102143101652221 in words is "one hundred two trillion, one hundred forty-three billion, one hundred one million, six hundred fifty-two thousand, two hundred twenty-one".