1213013041 has 4 divisors (see below), whose sum is σ = 1229629732. Its totient is φ = 1196396352.

The previous prime is 1213012979. The next prime is 1213013059. The reversal of 1213013041 is 1403103121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 773062416 + 439950625 = 27804^2 + 20975^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213013041 - 2²³ = 1204624433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213013141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8308236 + ... + 8308381.

It is an arithmetic number, because the mean of its divisors is an integer number (307407433).

Almost surely, 2^1213013041 is an apocalyptic number.

It is an amenable number.

1213013041 is a deficient number, since it is larger than the sum of its proper divisors (16616691).

1213013041 is an equidigital number, since it uses as much as digits as its factorization.

1213013041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16616690.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1213013041 is about 34828.3367532818. The cubic root of 1213013041 is about 1066.4859948662.

Adding to 1213013041 its reverse (1403103121), we get a palindrome (2616116162).

The spelling of 1213013041 in words is "one billion, two hundred thirteen million, thirteen thousand, forty-one".