1020213031 has 8 divisors (see below), whose sum is σ = 1037076480. Its totient is φ = 1003448472.

The previous prime is 1020213023. The next prime is 1020213041. The reversal of 1020213031 is 1303120201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020213031 - 2³ = 1020213023 is a prime.

It is a super-2 number, since 2×1020213031² = 2081669257244413922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020213041) 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 7 ways as a sum of consecutive naturals, for example, 3775 + ... + 45328.

It is an arithmetic number, because the mean of its divisors is an integer number (129634560).

Almost surely, 2^1020213031 is an apocalyptic number.

1020213031 is a deficient number, since it is larger than the sum of its proper divisors (16863449).

1020213031 is an equidigital number, since it uses as much as digits as its factorization.

1020213031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49445.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1020213031 is about 31940.7738008959. The cubic root of 1020213031 is about 1006.6927837154.

Adding to 1020213031 its reverse (1303120201), we get a palindrome (2323333232).

The spelling of 1020213031 in words is "one billion, twenty million, two hundred thirteen thousand, thirty-one".