1020312112 has 20 divisors (see below), whose sum is σ = 1977574816. Its totient is φ = 509970240.

The previous prime is 1020312091. The next prime is 1020312149. The reversal of 1020312112 is 2112130201.

It is a junction number, because it is equal to n+sod(n) for n = 1020312092 and 1020312101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40873 + ... + 60919.

Almost surely, 2^1020312112 is an apocalyptic number.

It is an amenable number.

1020312112 is a deficient number, since it is larger than the sum of its proper divisors (957262704).

1020312112 is a wasteful number, since it uses less digits than its factorization.

1020312112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23236 (or 23230 counting only the distinct ones).

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

The square root of 1020312112 is about 31942.3247745057. The cubic root of 1020312112 is about 1006.7253719742.

Adding to 1020312112 its reverse (2112130201), we get a palindrome (3132442313).

The spelling of 1020312112 in words is "one billion, twenty million, three hundred twelve thousand, one hundred twelve".