1020531351 has 32 divisors (see below), whose sum is σ = 1610661888. Its totient is φ = 562675680.

The previous prime is 1020531307. The next prime is 1020531353. The reversal of 1020531351 is 1531350201.

1020531351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020531351 - 2¹⁹ = 1020007063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020531353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62796 + ... + 77358.

It is an arithmetic number, because the mean of its divisors is an integer number (50333184).

Almost surely, 2^1020531351 is an apocalyptic number.

1020531351 is a deficient number, since it is larger than the sum of its proper divisors (590130537).

1020531351 is a wasteful number, since it uses less digits than its factorization.

1020531351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14691.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1020531351 is about 31945.7563848471. The cubic root of 1020531351 is about 1006.7974733291.

Adding to 1020531351 its reverse (1531350201), we get a palindrome (2551881552).

The spelling of 1020531351 in words is "one billion, twenty million, five hundred thirty-one thousand, three hundred fifty-one".