1021343031 has 6 divisors (see below), whose sum is σ = 1475273280. Its totient is φ = 680895348.

The previous prime is 1021343021. The next prime is 1021343093. The reversal of 1021343031 is 1303431201.

It is not a de Polignac number, because 1021343031 - 2²⁹ = 484472119 is a prime.

It is a super-2 number, since 2×1021343031² = 2086283173944533922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021342995 and 1021343013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021343021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56741271 + ... + 56741288.

It is an arithmetic number, because the mean of its divisors is an integer number (245878880).

Almost surely, 2^1021343031 is an apocalyptic number.

1021343031 is a deficient number, since it is larger than the sum of its proper divisors (453930249).

1021343031 is a wasteful number, since it uses less digits than its factorization.

1021343031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113482565 (or 113482562 counting only the distinct ones).

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

The square root of 1021343031 is about 31958.4578945856. The cubic root of 1021343031 is about 1007.0643215141.

Adding to 1021343031 its reverse (1303431201), we get a palindrome (2324774232).

The spelling of 1021343031 in words is "one billion, twenty-one million, three hundred forty-three thousand, thirty-one".