1420401121 has 8 divisors (see below), whose sum is σ = 1516780800. Its totient is φ = 1327181520.

The previous prime is 1420401109. The next prime is 1420401131. The reversal of 1420401121 is 1211040241.

It is a happy number.

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

It is not a de Polignac number, because 1420401121 - 2¹¹ = 1420399073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420401095 and 1420401104.

It is not an unprimeable number, because it can be changed into a prime (1420401131) 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, 789091 + ... + 790888.

It is an arithmetic number, because the mean of its divisors is an integer number (189597600).

Almost surely, 2^1420401121 is an apocalyptic number.

It is an amenable number.

1420401121 is a deficient number, since it is larger than the sum of its proper divisors (96379679).

1420401121 is a wasteful number, since it uses less digits than its factorization.

1420401121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580039.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1420401121 is about 37688.2093100747. The cubic root of 1420401121 is about 1124.0966894719.

Adding to 1420401121 its reverse (1211040241), we get a palindrome (2631441362).

The spelling of 1420401121 in words is "one billion, four hundred twenty million, four hundred one thousand, one hundred twenty-one".