11168952421 has 16 divisors (see below), whose sum is σ = 12750595200. Its totient is φ = 9684227520.

The previous prime is 11168952413. The next prime is 11168952437. The reversal of 11168952421 is 12425986111.

It is not a de Polignac number, because 11168952421 - 2³ = 11168952413 is a prime.

It is a super-2 number, since 2×11168952421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11168952121) 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, 25051 + ... + 151543.

It is an arithmetic number, because the mean of its divisors is an integer number (796912200).

Almost surely, 2^11168952421 is an apocalyptic number.

11168952421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11168952421 is a deficient number, since it is larger than the sum of its proper divisors (1581642779).

11168952421 is a wasteful number, since it uses less digits than its factorization.

11168952421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126876.

The product of its digits is 34560, while the sum is 40.

The spelling of 11168952421 in words is "eleven billion, one hundred sixty-eight million, nine hundred fifty-two thousand, four hundred twenty-one".