103612431 has 8 divisors (see below), whose sum is σ = 148776880. Its totient is φ = 63761472.

The previous prime is 103612429. The next prime is 103612441. The reversal of 103612431 is 134216301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103612431 - 2¹ = 103612429 is a prime.

It is a super-3 number, since 3×103612431³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103612398 and 103612407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103612441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1328326 + ... + 1328403.

It is an arithmetic number, because the mean of its divisors is an integer number (18597110).

Almost surely, 2^103612431 is an apocalyptic number.

103612431 is a deficient number, since it is larger than the sum of its proper divisors (45164449).

103612431 is a wasteful number, since it uses less digits than its factorization.

103612431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656745.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 103612431 is about 10179.0191570701. The cubic root of 103612431 is about 469.6820408691.

Adding to 103612431 its reverse (134216301), we get a palindrome (237828732).

The spelling of 103612431 in words is "one hundred three million, six hundred twelve thousand, four hundred thirty-one".