1420101109 has 4 divisors (see below), whose sum is σ = 1622972704. Its totient is φ = 1217229516.

The previous prime is 1420101091. The next prime is 1420101127. The reversal of 1420101109 is 9011010241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9011010241 = 1999 ⋅4507759.

It is an interprime number because it is at equal distance from previous prime (1420101091) and next prime (1420101127).

It is a cyclic number.

It is not a de Polignac number, because 1420101109 - 2²⁵ = 1386546677 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 (1420101209) 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, 101435787 + ... + 101435800.

It is an arithmetic number, because the mean of its divisors is an integer number (405743176).

Almost surely, 2^1420101109 is an apocalyptic number.

It is an amenable number.

1420101109 is a deficient number, since it is larger than the sum of its proper divisors (202871595).

1420101109 is an equidigital number, since it uses as much as digits as its factorization.

1420101109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202871594.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1420101109 is about 37684.2289160864. The cubic root of 1420101109 is about 1124.0175413502.

The spelling of 1420101109 in words is "one billion, four hundred twenty million, one hundred one thousand, one hundred nine".