1031221301413 has 2 divisors, whose sum is σ = 1031221301414. Its totient is φ = 1031221301412.

The previous prime is 1031221301359. The next prime is 1031221301423. The reversal of 1031221301413 is 3141031221301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 811355967009 + 219865334404 = 900753^2 + 468898^2 .

It is an emirp because it is prime and its reverse (3141031221301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1031221301413 - 2²¹ = 1031219204261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031221301423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515610650706 + 515610650707.

It is an arithmetic number, because the mean of its divisors is an integer number (515610650707).

Almost surely, 2^{1031221301413} is an apocalyptic number.

It is an amenable number.

1031221301413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031221301413 is an equidigital number, since it uses as much as digits as its factorization.

1031221301413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1031221301413 its reverse (3141031221301), we get a palindrome (4172252522714).

The spelling of 1031221301413 in words is "one trillion, thirty-one billion, two hundred twenty-one million, three hundred one thousand, four hundred thirteen".