1321313031229 has 8 divisors (see below), whose sum is σ = 1325741482368. Its totient is φ = 1316889081600.

The previous prime is 1321313031211. The next prime is 1321313031253. The reversal of 1321313031229 is 9221303131231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321313031229 - 2²¹ = 1321310934077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321313031229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321313034229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536827 + ... + 1711960.

It is an arithmetic number, because the mean of its divisors is an integer number (165717685296).

Almost surely, 2^{1321313031229} is an apocalyptic number.

It is an amenable number.

1321313031229 is a deficient number, since it is larger than the sum of its proper divisors (4428451139).

1321313031229 is a wasteful number, since it uses less digits than its factorization.

1321313031229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250755.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 1321313031229 in words is "one trillion, three hundred twenty-one billion, three hundred thirteen million, thirty-one thousand, two hundred twenty-nine".