1020111102043 has 32 divisors (see below), whose sum is σ = 1145143625472. Its totient is φ = 900716544000.

The previous prime is 1020111102011. The next prime is 1020111102097. The reversal of 1020111102043 is 3402011110201.

It is a cyclic number.

It is not a de Polignac number, because 1020111102043 - 2⁵ = 1020111102011 is a prime.

It is a super-2 number, since 2×1020111102043² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020111108043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73051180 + ... + 73065142.

It is an arithmetic number, because the mean of its divisors is an integer number (35785738296).

Almost surely, 2^{1020111102043} is an apocalyptic number.

1020111102043 is a deficient number, since it is larger than the sum of its proper divisors (125032523429).

1020111102043 is a wasteful number, since it uses less digits than its factorization.

1020111102043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14875.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1020111102043 its reverse (3402011110201), we get a palindrome (4422122212244).

The spelling of 1020111102043 in words is "one trillion, twenty billion, one hundred eleven million, one hundred two thousand, forty-three".