1020653331 has 16 divisors (see below), whose sum is σ = 1428587520. Its totient is φ = 647321760.

The previous prime is 1020653323. The next prime is 1020653339. The reversal of 1020653331 is 1333560201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020653323) and next prime (1020653339).

It is not a de Polignac number, because 1020653331 - 2³ = 1020653323 is a prime.

It is a super-2 number, since 2×1020653331² = 2083466444162791122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020653339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87520 + ... + 98493.

It is an arithmetic number, because the mean of its divisors is an integer number (89286720).

Almost surely, 2^1020653331 is an apocalyptic number.

1020653331 is a deficient number, since it is larger than the sum of its proper divisors (407934189).

1020653331 is a wasteful number, since it uses less digits than its factorization.

1020653331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186106.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 1020653331 is about 31947.6655015668. The cubic root of 1020653331 is about 1006.8375845460.

The spelling of 1020653331 in words is "one billion, twenty million, six hundred fifty-three thousand, three hundred thirty-one".