1421123204 has 12 divisors (see below), whose sum is σ = 2567190528. Its totient is φ = 687640200.

The previous prime is 1421123203. The next prime is 1421123213. The reversal of 1421123204 is 4023211241.

It is not an unprimeable number, because it can be changed into a prime (1421123201) 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, 5730212 + ... + 5730459.

It is an arithmetic number, because the mean of its divisors is an integer number (213932544).

Almost surely, 2^1421123204 is an apocalyptic number.

It is an amenable number.

1421123204 is a deficient number, since it is larger than the sum of its proper divisors (1146067324).

1421123204 is a wasteful number, since it uses less digits than its factorization.

1421123204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11460706 (or 11460704 counting only the distinct ones).

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

The square root of 1421123204 is about 37697.7877865532. The cubic root of 1421123204 is about 1124.2871412139.

Adding to 1421123204 its reverse (4023211241), we get a palindrome (5444334445).

The spelling of 1421123204 in words is "one billion, four hundred twenty-one million, one hundred twenty-three thousand, two hundred four".