21143143102102 has 8 divisors (see below), whose sum is σ = 36245388175056. Its totient is φ = 9061347043752.

The previous prime is 21143143102061. The next prime is 21143143102157. The reversal of 21143143102102 is 20120134134112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755112253633 + ... + 755112253660.

It is an arithmetic number, because the mean of its divisors is an integer number (4530673521882).

Almost surely, 2^{21143143102102} is an apocalyptic number.

21143143102102 is a deficient number, since it is larger than the sum of its proper divisors (15102245072954).

21143143102102 is a wasteful number, since it uses less digits than its factorization.

21143143102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510224507302.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 21143143102102 its reverse (20120134134112), we get a palindrome (41263277236214).

The spelling of 21143143102102 in words is "twenty-one trillion, one hundred forty-three billion, one hundred forty-three million, one hundred two thousand, one hundred two".