3143123421 has 16 divisors (see below), whose sum is σ = 4439602944. Its totient is φ = 1971154944.

The previous prime is 3143123411. The next prime is 3143123429. The reversal of 3143123421 is 1243213413.

It is a happy number.

It is not a de Polignac number, because 3143123421 - 2¹⁹ = 3142599133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3143123391 and 3143123400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143123429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93180 + ... + 122346.

It is an arithmetic number, because the mean of its divisors is an integer number (277475184).

Almost surely, 2^3143123421 is an apocalyptic number.

It is an amenable number.

3143123421 is a deficient number, since it is larger than the sum of its proper divisors (1296479523).

3143123421 is a wasteful number, since it uses less digits than its factorization.

3143123421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31300.

The product of its digits is 1728, while the sum is 24.

The square root of 3143123421 is about 56063.5658962218. The cubic root of 3143123421 is about 1464.8297271692.

Adding to 3143123421 its reverse (1243213413), we get a palindrome (4386336834).

The spelling of 3143123421 in words is "three billion, one hundred forty-three million, one hundred twenty-three thousand, four hundred twenty-one".