103420931 has 4 divisors (see below), whose sum is σ = 106987200. Its totient is φ = 99854664.

The previous prime is 103420907. The next prime is 103420939. The reversal of 103420931 is 139024301.

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

It is a cyclic number.

It is not a de Polignac number, because 103420931 - 2¹⁴ = 103404547 is a prime.

It is a super-2 number, since 2×103420931² = 21391777937813522, 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 = 103420897 and 103420906.

It is not an unprimeable number, because it can be changed into a prime (103420939) 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, 1783091 + ... + 1783148.

It is an arithmetic number, because the mean of its divisors is an integer number (26746800).

Almost surely, 2^103420931 is an apocalyptic number.

103420931 is a deficient number, since it is larger than the sum of its proper divisors (3566269).

103420931 is an equidigital number, since it uses as much as digits as its factorization.

103420931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566268.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 103420931 is about 10169.6082028759. The cubic root of 103420931 is about 469.3925016716.

The spelling of 103420931 in words is "one hundred three million, four hundred twenty thousand, nine hundred thirty-one".