4020310413221 has 8 divisors (see below), whose sum is σ = 4096226974104. Its totient is φ = 3944396135680.

The previous prime is 4020310413169. The next prime is 4020310413239. The reversal of 4020310413221 is 1223140130204.

It can be written as a sum of positive squares in 4 ways, for example, as 1854188762596 + 2166121650625 = 1361686^2 + 1471775^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4020310413221 - 2²² = 4020306218917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020310413521) 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, 3219185 + ... + 4289961.

It is an arithmetic number, because the mean of its divisors is an integer number (512028371763).

Almost surely, 2^{4020310413221} is an apocalyptic number.

It is an amenable number.

4020310413221 is a deficient number, since it is larger than the sum of its proper divisors (75916560883).

4020310413221 is a wasteful number, since it uses less digits than its factorization.

4020310413221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141671.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 4020310413221 its reverse (1223140130204), we get a palindrome (5243450543425).

The spelling of 4020310413221 in words is "four trillion, twenty billion, three hundred ten million, four hundred thirteen thousand, two hundred twenty-one".