2012143421 has 8 divisors (see below), whose sum is σ = 2027882304. Its totient is φ = 1996448800.

The previous prime is 2012143411. The next prime is 2012143489. The reversal of 2012143421 is 1243412102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012143421 is a prime.

It is a super-2 number, since 2×2012143421² = 8097442293347166482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2012143393 and 2012143402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012143411) 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, 83321 + ... + 104721.

It is an arithmetic number, because the mean of its divisors is an integer number (253485288).

Almost surely, 2^2012143421 is an apocalyptic number.

It is an amenable number.

2012143421 is a deficient number, since it is larger than the sum of its proper divisors (15738883).

2012143421 is a wasteful number, since it uses less digits than its factorization.

2012143421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22131.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2012143421 is about 44856.9216621025. The cubic root of 2012143421 is about 1262.4658649856.

Adding to 2012143421 its reverse (1243412102), we get a palindrome (3255555523).

The spelling of 2012143421 in words is "two billion, twelve million, one hundred forty-three thousand, four hundred twenty-one".