1021112103 has 24 divisors (see below), whose sum is σ = 1498299264. Its totient is φ = 618114640.

The previous prime is 1021112077. The next prime is 1021112111. The reversal of 1021112103 is 3012111201.

It is not a de Polignac number, because 1021112103 - 2⁶ = 1021112039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021112153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 551926 + ... + 553772.

It is an arithmetic number, because the mean of its divisors is an integer number (62429136).

Almost surely, 2^1021112103 is an apocalyptic number.

1021112103 is a deficient number, since it is larger than the sum of its proper divisors (477187161).

1021112103 is a wasteful number, since it uses less digits than its factorization.

1021112103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395 (or 3384 counting only the distinct ones).

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

The square root of 1021112103 is about 31954.8447500532. The cubic root of 1021112103 is about 1006.9884159426.

Adding to 1021112103 its reverse (3012111201), we get a palindrome (4033223304).

The spelling of 1021112103 in words is "one billion, twenty-one million, one hundred twelve thousand, one hundred three".