1020253210 has 16 divisors (see below), whose sum is σ = 1838399976. Its totient is φ = 407669248.

The previous prime is 1020253187. The next prime is 1020253211. The reversal of 1020253210 is 123520201.

It can be written as a sum of positive squares in 4 ways, for example, as 792816649 + 227436561 = 28157^2 + 15081^2 .

It is a super-2 number, since 2×1020253210² = 2081833225030608200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020253211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43999 + ... + 63058.

Almost surely, 2^1020253210 is an apocalyptic number.

1020253210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020253210 is a deficient number, since it is larger than the sum of its proper divisors (818146766).

1020253210 is a wasteful number, since it uses less digits than its factorization.

1020253210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108017.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1020253210 is about 31941.4027556712. The cubic root of 1020253210 is about 1006.7059990528.

Adding to 1020253210 its reverse (123520201), we get a palindrome (1143773411).

The spelling of 1020253210 in words is "one billion, twenty million, two hundred fifty-three thousand, two hundred ten".