31221302401301 has 2 divisors, whose sum is σ = 31221302401302. Its totient is φ = 31221302401300.

The previous prime is 31221302401291. The next prime is 31221302401307. The reversal of 31221302401301 is 10310420312213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23103874609201 + 8117427792100 = 4806649^2 + 2849110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31221302401301 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31221302401307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15610651200650 + 15610651200651.

It is an arithmetic number, because the mean of its divisors is an integer number (15610651200651).

Almost surely, 2^{31221302401301} is an apocalyptic number.

It is an amenable number.

31221302401301 is a deficient number, since it is larger than the sum of its proper divisors (1).

31221302401301 is an equidigital number, since it uses as much as digits as its factorization.

31221302401301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31221302401301 its reverse (10310420312213), we get a palindrome (41531722713514).

The spelling of 31221302401301 in words is "thirty-one trillion, two hundred twenty-one billion, three hundred two million, four hundred one thousand, three hundred one".