1421122123 has 4 divisors (see below), whose sum is σ = 1504717560. Its totient is φ = 1337526688.

The previous prime is 1421122121. The next prime is 1421122133. The reversal of 1421122123 is 3212211241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3212211241 = 43 ⋅74702587.

It is a cyclic number.

It is not a de Polignac number, because 1421122123 - 2¹ = 1421122121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421122123.

It is not an unprimeable number, because it can be changed into a prime (1421122121) 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, 41797693 + ... + 41797726.

It is an arithmetic number, because the mean of its divisors is an integer number (376179390).

Almost surely, 2^1421122123 is an apocalyptic number.

1421122123 is a deficient number, since it is larger than the sum of its proper divisors (83595437).

1421122123 is an equidigital number, since it uses as much as digits as its factorization.

1421122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83595436.

The product of its digits is 192, while the sum is 19.

The square root of 1421122123 is about 37697.7734488391. The cubic root of 1421122123 is about 1124.2868561448.

Adding to 1421122123 its reverse (3212211241), we get a palindrome (4633333364).

The spelling of 1421122123 in words is "one billion, four hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-three".