1420131311 has 2 divisors, whose sum is σ = 1420131312. Its totient is φ = 1420131310.

The previous prime is 1420131283. The next prime is 1420131331. The reversal of 1420131311 is 1131310241.

It is a strong prime.

It is an emirp because it is prime and its reverse (1131310241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420131311 - 2²² = 1415937007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1420131311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420131331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710065655 + 710065656.

It is an arithmetic number, because the mean of its divisors is an integer number (710065656).

Almost surely, 2^1420131311 is an apocalyptic number.

1420131311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420131311 is an equidigital number, since it uses as much as digits as its factorization.

1420131311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1420131311 is about 37684.6296386206. The cubic root of 1420131311 is about 1124.0255096413.

Adding to 1420131311 its reverse (1131310241), we get a palindrome (2551441552).

The spelling of 1420131311 in words is "one billion, four hundred twenty million, one hundred thirty-one thousand, three hundred eleven".