102831093 has 8 divisors (see below), whose sum is σ = 152342400. Its totient is φ = 68554044.

The previous prime is 102831089. The next prime is 102831101. The reversal of 102831093 is 390138201.

It is not a de Polignac number, because 102831093 - 2² = 102831089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3808559 = 102831093 / (1 + 0 + 2 + 8 + 3 + 1 + 0 + 9 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102831023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1904253 + ... + 1904306.

It is an arithmetic number, because the mean of its divisors is an integer number (19042800).

Almost surely, 2^102831093 is an apocalyptic number.

It is an amenable number.

102831093 is a deficient number, since it is larger than the sum of its proper divisors (49511307).

102831093 is an equidigital number, since it uses as much as digits as its factorization.

102831093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3808568 (or 3808562 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 102831093 is about 10140.5667001406. The cubic root of 102831093 is about 468.4984416634.

Adding to 102831093 its reverse (390138201), we get a palindrome (492969294).

The spelling of 102831093 in words is "one hundred two million, eight hundred thirty-one thousand, ninety-three".