1021112213103 has 6 divisors (see below), whose sum is σ = 1474939863384. Its totient is φ = 680741475396.

The previous prime is 1021112213081. The next prime is 1021112213111. The reversal of 1021112213103 is 3013122111201.

It is not a de Polignac number, because 1021112213103 - 2⁶ = 1021112213039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021112212103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56728456275 + ... + 56728456292.

It is an arithmetic number, because the mean of its divisors is an integer number (245823310564).

Almost surely, 2^{1021112213103} is an apocalyptic number.

1021112213103 is a deficient number, since it is larger than the sum of its proper divisors (453827650281).

1021112213103 is a wasteful number, since it uses less digits than its factorization.

1021112213103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113456912573 (or 113456912570 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1021112213103 its reverse (3013122111201), we get a palindrome (4034234324304).

The spelling of 1021112213103 in words is "one trillion, twenty-one billion, one hundred twelve million, two hundred thirteen thousand, one hundred three".