1021052115 has 64 divisors (see below), whose sum is σ = 1972531200. Its totient is φ = 499219200.

The previous prime is 1021052083. The next prime is 1021052119. The reversal of 1021052115 is 5112501201.

1021052115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021052115 - 2⁵ = 1021052083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021052119) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73095 + ... + 85935.

It is an arithmetic number, because the mean of its divisors is an integer number (30820800).

Almost surely, 2^1021052115 is an apocalyptic number.

1021052115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1021052115 is a deficient number, since it is larger than the sum of its proper divisors (951479085).

1021052115 is a wasteful number, since it uses less digits than its factorization.

1021052115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12905 (or 12899 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 1021052115 is about 31953.9060992549. The cubic root of 1021052115 is about 1006.9686961346.

Adding to 1021052115 its reverse (5112501201), we get a palindrome (6133553316).

The spelling of 1021052115 in words is "one billion, twenty-one million, fifty-two thousand, one hundred fifteen".