11621423017 has 16 divisors (see below), whose sum is σ = 12345161920. Its totient is φ = 10909339200.

The previous prime is 11621422961. The next prime is 11621423053. The reversal of 11621423017 is 71032412611.

It is a cyclic number.

It is not a de Polignac number, because 11621423017 - 2⁷ = 11621422889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11621423717) 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, 967267 + ... + 979207.

It is an arithmetic number, because the mean of its divisors is an integer number (771572620).

Almost surely, 2^11621423017 is an apocalyptic number.

It is an amenable number.

11621423017 is a deficient number, since it is larger than the sum of its proper divisors (723738903).

11621423017 is a wasteful number, since it uses less digits than its factorization.

11621423017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12424.

The product of its (nonzero) digits is 2016, while the sum is 28.

Adding to 11621423017 its reverse (71032412611), we get a palindrome (82653835628).

The spelling of 11621423017 in words is "eleven billion, six hundred twenty-one million, four hundred twenty-three thousand, seventeen".