103172331 has 4 divisors (see below), whose sum is σ = 137563112. Its totient is φ = 68781552.

The previous prime is 103172327. The next prime is 103172339. The reversal of 103172331 is 133271301.

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

It is not a de Polignac number, because 103172331 - 2² = 103172327 is a prime.

It is a super-2 number, since 2×103172331² = 21289059767947122, 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 = 103172298 and 103172307.

It is not an unprimeable number, because it can be changed into a prime (103172339) 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 3 ways as a sum of consecutive naturals, for example, 17195386 + ... + 17195391.

It is an arithmetic number, because the mean of its divisors is an integer number (34390778).

Almost surely, 2^103172331 is an apocalyptic number.

103172331 is a deficient number, since it is larger than the sum of its proper divisors (34390781).

103172331 is an equidigital number, since it uses as much as digits as its factorization.

103172331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34390780.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 103172331 is about 10157.3781558038. The cubic root of 103172331 is about 469.0160962405.

The spelling of 103172331 in words is "one hundred three million, one hundred seventy-two thousand, three hundred thirty-one".