1021204413 has 6 divisors (see below), whose sum is σ = 1475073054. Its totient is φ = 680802936.

The previous prime is 1021204411. The next prime is 1021204427. The reversal of 1021204413 is 3144021201.

1021204413 is a `hidden beast` number, since 10 + 212 + 0 + 441 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1010095524 + 11108889 = 31782^2 + 3333^2 .

It is not a de Polignac number, because 1021204413 - 2¹ = 1021204411 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021204411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56733570 + ... + 56733587.

It is an arithmetic number, because the mean of its divisors is an integer number (245845509).

Almost surely, 2^1021204413 is an apocalyptic number.

It is an amenable number.

1021204413 is a deficient number, since it is larger than the sum of its proper divisors (453868641).

1021204413 is a wasteful number, since it uses less digits than its factorization.

1021204413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113467163 (or 113467160 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1021204413 is about 31956.2890993307. The cubic root of 1021204413 is about 1007.0187594278.

Adding to 1021204413 its reverse (3144021201), we get a palindrome (4165225614).

The spelling of 1021204413 in words is "one billion, twenty-one million, two hundred four thousand, four hundred thirteen".