1021023112 has 16 divisors (see below), whose sum is σ = 1955151360. Its totient is φ = 499649424.

The previous prime is 1021023109. The next prime is 1021023119. The reversal of 1021023112 is 2113201201.

It is a junction number, because it is equal to n+sod(n) for n = 1021023092 and 1021023101.

It is not an unprimeable number, because it can be changed into a prime (1021023119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1357368 + ... + 1358119.

It is an arithmetic number, because the mean of its divisors is an integer number (122196960).

Almost surely, 2^1021023112 is an apocalyptic number.

It is an amenable number.

1021023112 is a deficient number, since it is larger than the sum of its proper divisors (934128248).

1021023112 is a wasteful number, since it uses less digits than its factorization.

1021023112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715540 (or 2715536 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1021023112 is about 31953.4522704512. The cubic root of 1021023112 is about 1006.9591617242.

Adding to 1021023112 its reverse (2113201201), we get a palindrome (3134224313).

The spelling of 1021023112 in words is "one billion, twenty-one million, twenty-three thousand, one hundred twelve".