11012304421 has 4 divisors (see below), whose sum is σ = 11660087052. Its totient is φ = 10364521792.

The previous prime is 11012304419. The next prime is 11012304491. The reversal of 11012304421 is 12440321011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12440321011 = 67 ⋅185676433.

It can be written as a sum of positive squares in 2 ways, for example, as 6247163521 + 4765140900 = 79039^2 + 69030^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012304421 - 2¹ = 11012304419 is a prime.

It is a super-2 number, since 2×11012304421² (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 (11012304491) 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, 323891290 + ... + 323891323.

It is an arithmetic number, because the mean of its divisors is an integer number (2915021763).

Almost surely, 2^11012304421 is an apocalyptic number.

It is an amenable number.

11012304421 is a deficient number, since it is larger than the sum of its proper divisors (647782631).

11012304421 is an equidigital number, since it uses as much as digits as its factorization.

11012304421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647782630.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11012304421 its reverse (12440321011), we get a palindrome (23452625432).

The spelling of 11012304421 in words is "eleven billion, twelve million, three hundred four thousand, four hundred twenty-one".