1010020331 has 4 divisors (see below), whose sum is σ = 1042601664. Its totient is φ = 977439000.

The previous prime is 1010020313. The next prime is 1010020343. The reversal of 1010020331 is 1330200101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1010020331 - 2⁶ = 1010020267 is a prime.

It is a super-4 number, since 4×1010020331⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010020631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16290620 + ... + 16290681.

It is an arithmetic number, because the mean of its divisors is an integer number (260650416).

Almost surely, 2^1010020331 is an apocalyptic number.

1010020331 is a deficient number, since it is larger than the sum of its proper divisors (32581333).

1010020331 is an equidigital number, since it uses as much as digits as its factorization.

1010020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32581332.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1010020331 is about 31780.8170285158. The cubic root of 1010020331 is about 1003.3290156901.

Adding to 1010020331 its reverse (1330200101), we get a palindrome (2340220432).

The spelling of 1010020331 in words is "one billion, ten million, twenty thousand, three hundred thirty-one".