102300031 has 4 divisors (see below), whose sum is σ = 105600064. Its totient is φ = 99000000.

The previous prime is 102300019. The next prime is 102300091. The reversal of 102300031 is 130003201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102300031 - 2¹⁷ = 102168959 is a prime.

It is a super-2 number, since 2×102300031² = 20930592685201922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102299990 and 102300017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102300001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1649970 + ... + 1650031.

It is an arithmetic number, because the mean of its divisors is an integer number (26400016).

Almost surely, 2^102300031 is an apocalyptic number.

102300031 is a deficient number, since it is larger than the sum of its proper divisors (3300033).

102300031 is an equidigital number, since it uses as much as digits as its factorization.

102300031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300032.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 102300031 is about 10114.3477792688. The cubic root of 102300031 is about 467.6905431637.

Adding to 102300031 its reverse (130003201), we get a palindrome (232303232).

The spelling of 102300031 in words is "one hundred two million, three hundred thousand, thirty-one".