1020045213 has 12 divisors (see below), whose sum is σ = 1607344128. Its totient is φ = 618209160.

The previous prime is 1020045211. The next prime is 1020045227. The reversal of 1020045213 is 3125400201.

1020045213 is a `hidden beast` number, since 1 + 0 + 200 + 452 + 13 = 666.

It is not a de Polignac number, because 1020045213 - 2¹ = 1020045211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020045211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5151645 + ... + 5151842.

It is an arithmetic number, because the mean of its divisors is an integer number (133945344).

Almost surely, 2^1020045213 is an apocalyptic number.

It is an amenable number.

1020045213 is a deficient number, since it is larger than the sum of its proper divisors (587298915).

1020045213 is a wasteful number, since it uses less digits than its factorization.

1020045213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10303504 (or 10303501 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1020045213 is about 31938.1466744706. The cubic root of 1020045213 is about 1006.6375826843.

Adding to 1020045213 its reverse (3125400201), we get a palindrome (4145445414).

The spelling of 1020045213 in words is "one billion, twenty million, forty-five thousand, two hundred thirteen".