1043215013 has 16 divisors (see below), whose sum is σ = 1122018480. Its totient is φ = 966451200.

The previous prime is 1043215009. The next prime is 1043215027. The reversal of 1043215013 is 3105123401.

It can be written as a sum of positive squares in 8 ways, for example, as 21325924 + 1021889089 = 4618^2 + 31967^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043215013 - 2² = 1043215009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043215213) 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, 363203 + ... + 366063.

It is an arithmetic number, because the mean of its divisors is an integer number (70126155).

Almost surely, 2^1043215013 is an apocalyptic number.

It is an amenable number.

1043215013 is a deficient number, since it is larger than the sum of its proper divisors (78803467).

1043215013 is a wasteful number, since it uses less digits than its factorization.

1043215013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1043215013 is about 32298.8391896675. The cubic root of 1043215013 is about 1014.2023428880.

Adding to 1043215013 its reverse (3105123401), we get a palindrome (4148338414).

The spelling of 1043215013 in words is "one billion, forty-three million, two hundred fifteen thousand, thirteen".