1081720477283 has 2 divisors, whose sum is σ = 1081720477284. Its totient is φ = 1081720477282.

The previous prime is 1081720477223. The next prime is 1081720477291. The reversal of 1081720477283 is 3827740271801.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1081720477283 - 2¹² = 1081720473187 is a prime.

It is a super-2 number, since 2×1081720477283² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1081720477223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540860238641 + 540860238642.

It is an arithmetic number, because the mean of its divisors is an integer number (540860238642).

Almost surely, 2^{1081720477283} is an apocalyptic number.

1081720477283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081720477283 is an equidigital number, since it uses as much as digits as its factorization.

1081720477283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1053696, while the sum is 50.

The spelling of 1081720477283 in words is "one trillion, eighty-one billion, seven hundred twenty million, four hundred seventy-seven thousand, two hundred eighty-three".