1020143325 has 12 divisors (see below), whose sum is σ = 1686637088. Its totient is φ = 544076400.

The previous prime is 1020143323. The next prime is 1020143363. The reversal of 1020143325 is 5233410201.

It is not a de Polignac number, because 1020143325 - 2¹ = 1020143323 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020143323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6800881 + ... + 6801030.

Almost surely, 2^1020143325 is an apocalyptic number.

1020143325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020143325 is a deficient number, since it is larger than the sum of its proper divisors (666493763).

1020143325 is a wasteful number, since it uses less digits than its factorization.

1020143325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13601924 (or 13601919 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1020143325 is about 31939.6826064380. The cubic root of 1020143325 is about 1006.6698557833.

Adding to 1020143325 its reverse (5233410201), we get a palindrome (6253553526).

The spelling of 1020143325 in words is "one billion, twenty million, one hundred forty-three thousand, three hundred twenty-five".