102310390 has 32 divisors (see below), whose sum is σ = 226658880. Its totient is φ = 32379264.

The previous prime is 102310387. The next prime is 102310391. The reversal of 102310390 is 93013201.

102310390 = 1015² + 1016² + ... + 1105².

It is a super-3 number, since 3×102310390³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102310391) 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 15 ways as a sum of consecutive naturals, for example, 55305 + ... + 57124.

It is an arithmetic number, because the mean of its divisors is an integer number (7083090).

Almost surely, 2^102310390 is an apocalyptic number.

102310390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102310390 is an abundant number, since it is smaller than the sum of its proper divisors (124348490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102310390 is a wasteful number, since it uses less digits than its factorization.

102310390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112456.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 102310390 is about 10114.8598606209. The cubic root of 102310390 is about 467.7063288963.

Adding to 102310390 its reverse (93013201), we get a palindrome (195323591).

It can be divided in two parts, 10 and 2310390, that added together give a square (2310400 = 1520²).

The spelling of 102310390 in words is "one hundred two million, three hundred ten thousand, three hundred ninety".