3121001341001 has 4 divisors (see below), whose sum is σ = 3121038408900. Its totient is φ = 3120964273104.

The previous prime is 3121001340983. The next prime is 3121001341049. The reversal of 3121001341001 is 1001431001213.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1691302851001 + 1429698490000 = 1300501^2 + 1195700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121001341001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121001341501) 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, 18407366 + ... + 18576143.

It is an arithmetic number, because the mean of its divisors is an integer number (780259602225).

Almost surely, 2^{3121001341001} is an apocalyptic number.

It is an amenable number.

3121001341001 is a deficient number, since it is larger than the sum of its proper divisors (37067899).

3121001341001 is an equidigital number, since it uses as much as digits as its factorization.

3121001341001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37067898.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 3121001341001 its reverse (1001431001213), we get a palindrome (4122432342214).

The spelling of 3121001341001 in words is "three trillion, one hundred twenty-one billion, one million, three hundred forty-one thousand, one".