1420121101 has 4 divisors (see below), whose sum is σ = 1622995552. Its totient is φ = 1217246652.

The previous prime is 1420121093. The next prime is 1420121111. The reversal of 1420121101 is 1011210241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1420121101 - 2³ = 1420121093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420121111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101437215 + ... + 101437228.

It is an arithmetic number, because the mean of its divisors is an integer number (405748888).

Almost surely, 2^1420121101 is an apocalyptic number.

It is an amenable number.

1420121101 is a deficient number, since it is larger than the sum of its proper divisors (202874451).

1420121101 is an equidigital number, since it uses as much as digits as its factorization.

1420121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202874450.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1420121101 is about 37684.4941720066. The cubic root of 1420121101 is about 1124.0228159167.

Adding to 1420121101 its reverse (1011210241), we get a palindrome (2431331342).

The spelling of 1420121101 in words is "one billion, four hundred twenty million, one hundred twenty-one thousand, one hundred one".