103200031 has 4 divisors (see below), whose sum is σ = 112581864. Its totient is φ = 93818200.

The previous prime is 103200029. The next prime is 103200049. The reversal of 103200031 is 130002301.

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 103200031 - 2¹ = 103200029 is a prime.

It is a super-2 number, since 2×103200031² = 21300492796801922, 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 = 103199990 and 103200017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103200061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4690900 + ... + 4690921.

It is an arithmetic number, because the mean of its divisors is an integer number (28145466).

Almost surely, 2^103200031 is an apocalyptic number.

103200031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103200031 is a deficient number, since it is larger than the sum of its proper divisors (9381833).

103200031 is an equidigital number, since it uses as much as digits as its factorization.

103200031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9381832.

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

The square root of 103200031 is about 10158.7416051399. The cubic root of 103200031 is about 469.0580667418.

Adding to 103200031 its reverse (130002301), we get a palindrome (233202332).

The spelling of 103200031 in words is "one hundred three million, two hundred thousand, thirty-one".