1413131021 has 2 divisors, whose sum is σ = 1413131022. Its totient is φ = 1413131020.

The previous prime is 1413131003. The next prime is 1413131087. The reversal of 1413131021 is 1201313141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1384881796 + 28249225 = 37214^2 + 5315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1413131021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1413131521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706565510 + 706565511.

It is an arithmetic number, because the mean of its divisors is an integer number (706565511).

Almost surely, 2^1413131021 is an apocalyptic number.

It is an amenable number.

1413131021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1413131021 is an equidigital number, since it uses as much as digits as its factorization.

1413131021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1413131021 is about 37591.6349870553. The cubic root of 1413131021 is about 1122.1755706476.

Adding to 1413131021 its reverse (1201313141), we get a palindrome (2614444162).

The spelling of 1413131021 in words is "one billion, four hundred thirteen million, one hundred thirty-one thousand, twenty-one".