1020355441291 has 2 divisors, whose sum is σ = 1020355441292. Its totient is φ = 1020355441290.

The previous prime is 1020355441289. The next prime is 1020355441361. The reversal of 1020355441291 is 1921445530201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020355441291 - 2¹ = 1020355441289 is a prime.

It is a super-2 number, since 2×1020355441291² (a number of 25 digits) contains 22 as substring.

Together with 1020355441289, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1020355441291.

It is not a weakly prime, because it can be changed into another prime (1020355441211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510177720645 + 510177720646.

It is an arithmetic number, because the mean of its divisors is an integer number (510177720646).

Almost surely, 2^{1020355441291} is an apocalyptic number.

1020355441291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020355441291 is an equidigital number, since it uses as much as digits as its factorization.

1020355441291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 1020355441291 in words is "one trillion, twenty billion, three hundred fifty-five million, four hundred forty-one thousand, two hundred ninety-one".