3121223301013 has 8 divisors (see below), whose sum is σ = 3122204324760. Its totient is φ = 3120242442240.

The previous prime is 3121223300977. The next prime is 3121223301019. The reversal of 3121223301013 is 3101033221213.

It can be written as a sum of positive squares in 4 ways, for example, as 1816826322609 + 1304396978404 = 1347897^2 + 1142102^2 .

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 3121223301013 - 2²¹ = 3121221203861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121223301019) 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, 45260403 + ... + 45329311.

It is an arithmetic number, because the mean of its divisors is an integer number (390275540595).

Almost surely, 2^{3121223301013} is an apocalyptic number.

It is an amenable number.

3121223301013 is a deficient number, since it is larger than the sum of its proper divisors (981023747).

3121223301013 is an equidigital number, since it uses as much as digits as its factorization.

3121223301013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82487.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 3121223301013 its reverse (3101033221213), we get a palindrome (6222256522226).

The spelling of 3121223301013 in words is "three trillion, one hundred twenty-one billion, two hundred twenty-three million, three hundred one thousand, thirteen".