103204631 has 4 divisors (see below), whose sum is σ = 103250952. Its totient is φ = 103158312.

The previous prime is 103204613. The next prime is 103204643. The reversal of 103204631 is 136402301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136402301 = 7 ⋅19486043.

It is a cyclic number.

It is not a de Polignac number, because 103204631 - 2⁶ = 103204567 is a prime.

It is a super-2 number, since 2×103204631² = 21302391719692322, 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 (103204681) 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, 19640 + ... + 24333.

It is an arithmetic number, because the mean of its divisors is an integer number (25812738).

Almost surely, 2^103204631 is an apocalyptic number.

103204631 is a deficient number, since it is larger than the sum of its proper divisors (46321).

103204631 is an equidigital number, since it uses as much as digits as its factorization.

103204631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46320.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 103204631 is about 10158.9680086119. The cubic root of 103204631 is about 469.0650358451.

Adding to 103204631 its reverse (136402301), we get a palindrome (239606932).

The spelling of 103204631 in words is "one hundred three million, two hundred four thousand, six hundred thirty-one".