1020011111103 has 32 divisors (see below), whose sum is σ = 1419394878720. Its totient is φ = 650982608640.

The previous prime is 1020011111087. The next prime is 1020011111107. The reversal of 1020011111103 is 3011111100201.

It is not a de Polignac number, because 1020011111103 - 2⁴ = 1020011111087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020011111107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3841101 + ... + 4098057.

It is an arithmetic number, because the mean of its divisors is an integer number (44356089960).

Almost surely, 2^{1020011111103} is an apocalyptic number.

1020011111103 is a deficient number, since it is larger than the sum of its proper divisors (399383767617).

1020011111103 is a wasteful number, since it uses less digits than its factorization.

1020011111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257607.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 1020011111103 its reverse (3011111100201), we get a palindrome (4031122211304).

The spelling of 1020011111103 in words is "one trillion, twenty billion, eleven million, one hundred eleven thousand, one hundred three".