1020320135 has 8 divisors (see below), whose sum is σ = 1277618400. Its totient is φ = 780766624.

The previous prime is 1020320131. The next prime is 1020320141. The reversal of 1020320135 is 5310230201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020320135 - 2² = 1020320131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020320131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4436060 + ... + 4436289.

It is an arithmetic number, because the mean of its divisors is an integer number (159702300).

Almost surely, 2^1020320135 is an apocalyptic number.

1020320135 is a deficient number, since it is larger than the sum of its proper divisors (257298265).

1020320135 is an equidigital number, since it uses as much as digits as its factorization.

1020320135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8872377.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1020320135 is about 31942.4503599833. The cubic root of 1020320135 is about 1006.7280106885.

Adding to 1020320135 its reverse (5310230201), we get a palindrome (6330550336).

The spelling of 1020320135 in words is "one billion, twenty million, three hundred twenty thousand, one hundred thirty-five".