1420547656111 has 2 divisors, whose sum is σ = 1420547656112. Its totient is φ = 1420547656110.

The previous prime is 1420547656063. The next prime is 1420547656123. The reversal of 1420547656111 is 1116567450241.

It is a strong prime.

It is an emirp because it is prime and its reverse (1116567450241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420547656111 - 2¹³ = 1420547647919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420547656511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710273828055 + 710273828056.

It is an arithmetic number, because the mean of its divisors is an integer number (710273828056).

Almost surely, 2^{1420547656111} is an apocalyptic number.

1420547656111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420547656111 is an equidigital number, since it uses as much as digits as its factorization.

1420547656111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 1420547656111 in words is "one trillion, four hundred twenty billion, five hundred forty-seven million, six hundred fifty-six thousand, one hundred eleven".