1020043025 has 24 divisors (see below), whose sum is σ = 1347517920. Its totient is φ = 763741440.

The previous prime is 1020043019. The next prime is 1020043049. The reversal of 1020043025 is 5203400201.

It is not a de Polignac number, because 1020043025 - 2⁴ = 1020043009 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1020042994 and 1020043012.

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, 26489 + ... + 52361.

It is an arithmetic number, because the mean of its divisors is an integer number (56146580).

Almost surely, 2^1020043025 is an apocalyptic number.

It is an amenable number.

1020043025 is a deficient number, since it is larger than the sum of its proper divisors (327474895).

1020043025 is a wasteful number, since it uses less digits than its factorization.

1020043025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25985 (or 25980 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1020043025 is about 31938.1124207427. The cubic root of 1020043025 is about 1006.6368629370.

Adding to 1020043025 its reverse (5203400201), we get a palindrome (6223443226).

The spelling of 1020043025 in words is "one billion, twenty million, forty-three thousand, twenty-five".