1420051511 has 2 divisors, whose sum is σ = 1420051512. Its totient is φ = 1420051510.

The previous prime is 1420051499. The next prime is 1420051519. The reversal of 1420051511 is 1151500241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1420051511 - 2³⁰ = 346309687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420051519) 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 as a sum of consecutive naturals, namely, 710025755 + 710025756.

It is an arithmetic number, because the mean of its divisors is an integer number (710025756).

Almost surely, 2^1420051511 is an apocalyptic number.

1420051511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420051511 is an equidigital number, since it uses as much as digits as its factorization.

1420051511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1420051511 is about 37683.5708366391. The cubic root of 1420051511 is about 1124.0044555047.

Adding to 1420051511 its reverse (1151500241), we get a palindrome (2571551752).

The spelling of 1420051511 in words is "one billion, four hundred twenty million, fifty-one thousand, five hundred eleven".