1031210031323 has 4 divisors (see below), whose sum is σ = 1031775699648. Its totient is φ = 1030644363000.

The previous prime is 1031210031317. The next prime is 1031210031329. The reversal of 1031210031323 is 3231300121301.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1031210031317) and next prime (1031210031329).

It is a cyclic number.

It is not a de Polignac number, because 1031210031323 - 2¹² = 1031210027227 is a prime.

It is a super-2 number, since 2×1031210031323² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031210031295 and 1031210031304.

It is not an unprimeable number, because it can be changed into a prime (1031210031329) 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 3 ways as a sum of consecutive naturals, for example, 282831428 + ... + 282835073.

It is an arithmetic number, because the mean of its divisors is an integer number (257943924912).

Almost surely, 2^{1031210031323} is an apocalyptic number.

1031210031323 is a deficient number, since it is larger than the sum of its proper divisors (565668325).

1031210031323 is an equidigital number, since it uses as much as digits as its factorization.

1031210031323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565668324.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1031210031323 its reverse (3231300121301), we get a palindrome (4262510152624).

The spelling of 1031210031323 in words is "one trillion, thirty-one billion, two hundred ten million, thirty-one thousand, three hundred twenty-three".