1230020331 has 8 divisors (see below), whose sum is σ = 1650089280. Its totient is φ = 814982472.

The previous prime is 1230020321. The next prime is 1230020339. The reversal of 1230020331 is 1330200321.

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

It is not a de Polignac number, because 1230020331 - 2²⁹ = 693149419 is a prime.

It is a super-2 number, since 2×1230020331² = 3025900029346699122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1230020331.

It is not an unprimeable number, because it can be changed into a prime (1230020339) 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, 1257201 + ... + 1258178.

It is an arithmetic number, because the mean of its divisors is an integer number (206261160).

Almost surely, 2^1230020331 is an apocalyptic number.

1230020331 is a deficient number, since it is larger than the sum of its proper divisors (420068949).

1230020331 is a wasteful number, since it uses less digits than its factorization.

1230020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515545.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1230020331 is about 35071.6456842276. The cubic root of 1230020331 is about 1071.4471730383.

Adding to 1230020331 its reverse (1330200321), we get a palindrome (2560220652).

The spelling of 1230020331 in words is "one billion, two hundred thirty million, twenty thousand, three hundred thirty-one".