3132313101221 has 2 divisors, whose sum is σ = 3132313101222. Its totient is φ = 3132313101220.

The previous prime is 3132313101179. The next prime is 3132313101257. The reversal of 3132313101221 is 1221013132313.

3132313101221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3066400240996 + 65912860225 = 1751114^2 + 256735^2 .

It is a cyclic number.

It is not a de Polignac number, because 3132313101221 - 2³⁸ = 2857435194277 is a prime.

It is a super-2 number, since 2×3132313101221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3132313101521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1566156550610 + 1566156550611.

It is an arithmetic number, because the mean of its divisors is an integer number (1566156550611).

Almost surely, 2^{3132313101221} is an apocalyptic number.

It is an amenable number.

3132313101221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3132313101221 is an equidigital number, since it uses as much as digits as its factorization.

3132313101221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 3132313101221 its reverse (1221013132313), we get a palindrome (4353326233534).

The spelling of 3132313101221 in words is "three trillion, one hundred thirty-two billion, three hundred thirteen million, one hundred one thousand, two hundred twenty-one".