102031143 has 16 divisors (see below), whose sum is σ = 137639040. Its totient is φ = 67226976.

The previous prime is 102031129. The next prime is 102031147. The reversal of 102031143 is 341130201.

It is not a de Polignac number, because 102031143 - 2¹⁰ = 102030119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102031147) 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, 127621 + ... + 128417.

It is an arithmetic number, because the mean of its divisors is an integer number (8602440).

Almost surely, 2^102031143 is an apocalyptic number.

102031143 is a deficient number, since it is larger than the sum of its proper divisors (35607897).

102031143 is a wasteful number, since it uses less digits than its factorization.

102031143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 102031143 is about 10101.0466289390. The cubic root of 102031143 is about 467.2804203933.

Adding to 102031143 its reverse (341130201), we get a palindrome (443161344).

The spelling of 102031143 in words is "one hundred two million, thirty-one thousand, one hundred forty-three".