1020134213 has 16 divisors (see below), whose sum is σ = 1173598080. Its totient is φ = 868625856.

The previous prime is 1020134209. The next prime is 1020134221. The reversal of 1020134213 is 3124310201.

It is not a de Polignac number, because 1020134213 - 2² = 1020134209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020134191 and 1020134200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020184213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840395 + ... + 841607.

It is an arithmetic number, because the mean of its divisors is an integer number (73349880).

Almost surely, 2^1020134213 is an apocalyptic number.

It is an amenable number.

1020134213 is a deficient number, since it is larger than the sum of its proper divisors (153463867).

1020134213 is a wasteful number, since it uses less digits than its factorization.

1020134213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1020134213 is about 31939.5399622474. The cubic root of 1020134213 is about 1006.6668585564. Note that the first 3 decimals are identical.

Adding to 1020134213 its reverse (3124310201), we get a palindrome (4144444414).

The spelling of 1020134213 in words is "one billion, twenty million, one hundred thirty-four thousand, two hundred thirteen".