1020113025 has 24 divisors (see below), whose sum is σ = 1688743104. Its totient is φ = 543364800.

The previous prime is 1020112981. The next prime is 1020113047. The reversal of 1020113025 is 5203110201.

It is not a de Polignac number, because 1020113025 - 2¹⁶ = 1020047489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 1020112995 and 1020113013.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53292 + ... + 69858.

It is an arithmetic number, because the mean of its divisors is an integer number (70364296).

Almost surely, 2^1020113025 is an apocalyptic number.

1020113025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020113025 is a deficient number, since it is larger than the sum of its proper divisors (668630079).

1020113025 is a wasteful number, since it uses less digits than its factorization.

1020113025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17401 (or 17396 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1020113025 is about 31939.2082713395. The cubic root of 1020113025 is about 1006.6598890796.

Adding to 1020113025 its reverse (5203110201), we get a palindrome (6223223226).

The spelling of 1020113025 in words is "one billion, twenty million, one hundred thirteen thousand, twenty-five".