102121143 has 8 divisors (see below), whose sum is σ = 143328000. Its totient is φ = 64497528.

The previous prime is 102121141. The next prime is 102121157. The reversal of 102121143 is 341121201.

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

It is not a de Polignac number, because 102121143 - 2¹ = 102121141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121141) 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, 895743 + ... + 895856.

It is an arithmetic number, because the mean of its divisors is an integer number (17916000).

Almost surely, 2^102121143 is an apocalyptic number.

102121143 is a deficient number, since it is larger than the sum of its proper divisors (41206857).

102121143 is a wasteful number, since it uses less digits than its factorization.

102121143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791621.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 102121143 is about 10105.5006308446. The cubic root of 102121143 is about 467.4177734839.

Adding to 102121143 its reverse (341121201), we get a palindrome (443242344).

The spelling of 102121143 in words is "one hundred two million, one hundred twenty-one thousand, one hundred forty-three".