1031301013221 has 16 divisors (see below), whose sum is σ = 1542980617920. Its totient is φ = 680726739600.

The previous prime is 1031301013163. The next prime is 1031301013231. The reversal of 1031301013221 is 1223101031301.

1031301013221 is a `hidden beast` number, since 10 + 31 + 301 + 0 + 1 + 322 + 1 = 666.

It is not a de Polignac number, because 1031301013221 - 2²³ = 1031292624613 is a prime.

It is a super-2 number, since 2×1031301013221² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1031301013194 and 1031301013203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031301013231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189088035 + ... + 189093488.

It is an arithmetic number, because the mean of its divisors is an integer number (96436288620).

Almost surely, 2^{1031301013221} is an apocalyptic number.

It is an amenable number.

1031301013221 is a deficient number, since it is larger than the sum of its proper divisors (511679604699).

1031301013221 is a wasteful number, since it uses less digits than its factorization.

1031301013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378181633 (or 378181627 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1031301013221 its reverse (1223101031301), we get a palindrome (2254402044522).

The spelling of 1031301013221 in words is "one trillion, thirty-one billion, three hundred one million, thirteen thousand, two hundred twenty-one".