1420220343331 has 2 divisors, whose sum is σ = 1420220343332. Its totient is φ = 1420220343330.

The previous prime is 1420220343307. The next prime is 1420220343341. The reversal of 1420220343331 is 1333430220241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1420220343331 - 2⁷ = 1420220343203 is a prime.

It is a super-2 number, since 2×1420220343331² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1420220343331.

It is not a weakly prime, because it can be changed into another prime (1420220343341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710110171665 + 710110171666.

It is an arithmetic number, because the mean of its divisors is an integer number (710110171666).

Almost surely, 2^{1420220343331} is an apocalyptic number.

1420220343331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420220343331 is an equidigital number, since it uses as much as digits as its factorization.

1420220343331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 1420220343331 its reverse (1333430220241), we get a palindrome (2753650563572).

The spelling of 1420220343331 in words is "one trillion, four hundred twenty billion, two hundred twenty million, three hundred forty-three thousand, three hundred thirty-one".