3121032121201 has 2 divisors, whose sum is σ = 3121032121202. Its totient is φ = 3121032121200.

The previous prime is 3121032121187. The next prime is 3121032121219. The reversal of 3121032121201 is 1021212301213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2689678720576 + 431353400625 = 1640024^2 + 656775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121032121201 is a prime.

It is not a weakly prime, because it can be changed into another prime (3121032121901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560516060600 + 1560516060601.

It is an arithmetic number, because the mean of its divisors is an integer number (1560516060601).

Almost surely, 2^{3121032121201} is an apocalyptic number.

It is an amenable number.

3121032121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121032121201 is an equidigital number, since it uses as much as digits as its factorization.

3121032121201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 3121032121201 its reverse (1021212301213), we get a palindrome (4142244422414).

The spelling of 3121032121201 in words is "three trillion, one hundred twenty-one billion, thirty-two million, one hundred twenty-one thousand, two hundred one".