3020221031 has 4 divisors (see below), whose sum is σ = 3021131064. Its totient is φ = 3019311000.

The previous prime is 3020221027. The next prime is 3020221049. The reversal of 3020221031 is 1301220203.

It is a happy number.

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 3020221031 - 2² = 3020221027 is a prime.

It is a super-2 number, since 2×3020221031² = 18243470152189405922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3020220997 and 3020221015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020221021) 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, 450020 + ... + 456681.

It is an arithmetic number, because the mean of its divisors is an integer number (755282766).

Almost surely, 2^3020221031 is an apocalyptic number.

3020221031 is a deficient number, since it is larger than the sum of its proper divisors (910033).

3020221031 is an equidigital number, since it uses as much as digits as its factorization.

3020221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910032.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3020221031 is about 54956.5376547686. The cubic root of 3020221031 is about 1445.4827361876.

Adding to 3020221031 its reverse (1301220203), we get a palindrome (4321441234).

The spelling of 3020221031 in words is "three billion, twenty million, two hundred twenty-one thousand, thirty-one".