1031321322031 has 36 divisors (see below), whose sum is σ = 1420115798136. Its totient is φ = 741809486880.

The previous prime is 1031321322029. The next prime is 1031321322043. The reversal of 1031321322031 is 1302231231301.

It is not a de Polignac number, because 1031321322031 - 2¹ = 1031321322029 is a prime.

It is a super-2 number, since 2×1031321322031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1031321321993 and 1031321322011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031321325031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6613125 + ... + 6767278.

Almost surely, 2^{1031321322031} is an apocalyptic number.

1031321322031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1031321322031 is a deficient number, since it is larger than the sum of its proper divisors (388794476105).

1031321322031 is a wasteful number, since it uses less digits than its factorization.

1031321322031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13380452 (or 13380434 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1031321322031 its reverse (1302231231301), we get a palindrome (2333552553332).

The spelling of 1031321322031 in words is "one trillion, thirty-one billion, three hundred twenty-one million, three hundred twenty-two thousand, thirty-one".