1020350545111 has 4 divisors (see below), whose sum is σ = 1074053205400. Its totient is φ = 966647884824.

The previous prime is 1020350545099. The next prime is 1020350545127. The reversal of 1020350545111 is 1115450530201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020350545111 is a prime.

It is a super-2 number, since 2×1020350545111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020350545111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020350549111) 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 in 3 ways as a sum of consecutive naturals, for example, 26851330116 + ... + 26851330153.

It is an arithmetic number, because the mean of its divisors is an integer number (268513301350).

Almost surely, 2^{1020350545111} is an apocalyptic number.

1020350545111 is a deficient number, since it is larger than the sum of its proper divisors (53702660289).

1020350545111 is an equidigital number, since it uses as much as digits as its factorization.

1020350545111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53702660288.

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 1020350545111 in words is "one trillion, twenty billion, three hundred fifty million, five hundred forty-five thousand, one hundred eleven".