1021320112 has 20 divisors (see below), whose sum is σ = 1981692856. Its totient is φ = 509915520.

The previous prime is 1021320107. The next prime is 1021320143. The reversal of 1021320112 is 2110231201.

It is a junction number, because it is equal to n+sod(n) for n = 1021320092 and 1021320101.

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, 35133 + ... + 57244.

Almost surely, 2^1021320112 is an apocalyptic number.

It is an amenable number.

1021320112 is a deficient number, since it is larger than the sum of its proper divisors (960372744).

1021320112 is an equidigital number, since it uses as much as digits as its factorization.

1021320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93076 (or 93070 counting only the distinct ones).

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

The square root of 1021320112 is about 31958.0993177004. The cubic root of 1021320112 is about 1007.0567885961.

Adding to 1021320112 its reverse (2110231201), we get a palindrome (3131551313).

The spelling of 1021320112 in words is "one billion, twenty-one million, three hundred twenty thousand, one hundred twelve".