103412431 has 4 divisors (see below), whose sum is σ = 103815072. Its totient is φ = 103009792.

The previous prime is 103412363. The next prime is 103412437. The reversal of 103412431 is 134214301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134214301 = 13 ⋅10324177.

It is a cyclic number.

It is not a de Polignac number, because 103412431 - 2⁷ = 103412303 is a prime.

It is a super-2 number, since 2×103412431² = 21388261770659522, 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 = 103412399 and 103412408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103412437) 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, 200935 + ... + 201448.

It is an arithmetic number, because the mean of its divisors is an integer number (25953768).

Almost surely, 2^103412431 is an apocalyptic number.

103412431 is a deficient number, since it is larger than the sum of its proper divisors (402641).

103412431 is an equidigital number, since it uses as much as digits as its factorization.

103412431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402640.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 103412431 is about 10169.1902824168. The cubic root of 103412431 is about 469.3796417810.

Adding to 103412431 its reverse (134214301), we get a palindrome (237626732).

The spelling of 103412431 in words is "one hundred three million, four hundred twelve thousand, four hundred thirty-one".