3103123421 has 4 divisors (see below), whose sum is σ = 3122161152. Its totient is φ = 3084085692.

The previous prime is 3103123403. The next prime is 3103123427. The reversal of 3103123421 is 1243213013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3103123421 - 2¹⁰ = 3103122397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3103123393 and 3103123402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103123427) 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, 9518621 + ... + 9518946.

It is an arithmetic number, because the mean of its divisors is an integer number (780540288).

Almost surely, 2^3103123421 is an apocalyptic number.

It is an amenable number.

3103123421 is a deficient number, since it is larger than the sum of its proper divisors (19037731).

3103123421 is a wasteful number, since it uses less digits than its factorization.

3103123421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19037730.

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

The square root of 3103123421 is about 55705.6857151943. The cubic root of 3103123421 is about 1458.5892767552.

Adding to 3103123421 its reverse (1243213013), we get a palindrome (4346336434).

The spelling of 3103123421 in words is "three billion, one hundred three million, one hundred twenty-three thousand, four hundred twenty-one".