11413343021 has 8 divisors (see below), whose sum is σ = 11520673560. Its totient is φ = 11306060352.

The previous prime is 11413343009. The next prime is 11413343027. The reversal of 11413343021 is 12034331411.

It can be written as a sum of positive squares in 4 ways, for example, as 6465768100 + 4947574921 = 80410^2 + 70339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11413343021 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 (11413343027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624611 + ... + 642623.

It is an arithmetic number, because the mean of its divisors is an integer number (1440084195).

Almost surely, 2^11413343021 is an apocalyptic number.

It is an amenable number.

11413343021 is a deficient number, since it is larger than the sum of its proper divisors (107330539).

11413343021 is a wasteful number, since it uses less digits than its factorization.

11413343021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23935.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 11413343021 its reverse (12034331411), we get a palindrome (23447674432).

The spelling of 11413343021 in words is "eleven billion, four hundred thirteen million, three hundred forty-three thousand, twenty-one".