103331431 has 16 divisors (see below), whose sum is σ = 120121344. Its totient is φ = 87060384.

The previous prime is 103331407. The next prime is 103331467. The reversal of 103331431 is 134133301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103331431 is a prime.

It is a super-2 number, since 2×103331431² = 21354769265015522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103331399 and 103331408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103331471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169930 + ... + 170536.

It is an arithmetic number, because the mean of its divisors is an integer number (7507584).

Almost surely, 2^103331431 is an apocalyptic number.

103331431 is a deficient number, since it is larger than the sum of its proper divisors (16789913).

103331431 is an equidigital number, since it uses as much as digits as its factorization.

103331431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 103331431 is about 10165.2068842695. The cubic root of 103331431 is about 469.2570592199.

Adding to 103331431 its reverse (134133301), we get a palindrome (237464732).

The spelling of 103331431 in words is "one hundred three million, three hundred thirty-one thousand, four hundred thirty-one".