103020231 has 4 divisors (see below), whose sum is σ = 137360312. Its totient is φ = 68680152.

The previous prime is 103020227. The next prime is 103020271. The reversal of 103020231 is 132020301.

It is a happy number.

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

It is not a de Polignac number, because 103020231 - 2² = 103020227 is a prime.

It is a super-2 number, since 2×103020231² = 21226335990586722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103020271) 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, 17170036 + ... + 17170041.

It is an arithmetic number, because the mean of its divisors is an integer number (34340078).

Almost surely, 2^103020231 is an apocalyptic number.

103020231 is a deficient number, since it is larger than the sum of its proper divisors (34340081).

103020231 is an equidigital number, since it uses as much as digits as its factorization.

103020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34340080.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 103020231 is about 10149.8882259855. Note that the first 3 decimals coincide. The cubic root of 103020231 is about 468.7855033020.

Adding to 103020231 its reverse (132020301), we get a palindrome (235040532).

The spelling of 103020231 in words is "one hundred three million, twenty thousand, two hundred thirty-one".