1021323002031 has 48 divisors (see below), whose sum is σ = 1545717202848. Its totient is φ = 673840944000.

The previous prime is 1021323001997. The next prime is 1021323002041. The reversal of 1021323002031 is 1302003231201.

It is not a de Polignac number, because 1021323002031 - 2⁹ = 1021323001519 is a prime.

It is a super-2 number, since 2×1021323002031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021323001995 and 1021323002013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021323002041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64319265 + ... + 64335141.

It is an arithmetic number, because the mean of its divisors is an integer number (32202441726).

Almost surely, 2^{1021323002031} is an apocalyptic number.

1021323002031 is a deficient number, since it is larger than the sum of its proper divisors (524394200817).

1021323002031 is a wasteful number, since it uses less digits than its factorization.

1021323002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18614 (or 18602 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1021323002031 its reverse (1302003231201), we get a palindrome (2323326233232).

The spelling of 1021323002031 in words is "one trillion, twenty-one billion, three hundred twenty-three million, two thousand, thirty-one".