11052355421 has 4 divisors (see below), whose sum is σ = 11054402652. Its totient is φ = 11050308192.

The previous prime is 11052355411. The next prime is 11052355429. The reversal of 11052355421 is 12455325011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12455325011 = 88463 ⋅140797.

It can be written as a sum of positive squares in 2 ways, for example, as 1083331396 + 9969024025 = 32914^2 + 99845^2 .

It is a cyclic number.

It is not a de Polignac number, because 11052355421 - 2⁶ = 11052355357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11052355429) 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, 1015496 + ... + 1026321.

It is an arithmetic number, because the mean of its divisors is an integer number (2763600663).

Almost surely, 2^11052355421 is an apocalyptic number.

It is an amenable number.

11052355421 is a deficient number, since it is larger than the sum of its proper divisors (2047231).

11052355421 is an equidigital number, since it uses as much as digits as its factorization.

11052355421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047230.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 11052355421 in words is "eleven billion, fifty-two million, three hundred fifty-five thousand, four hundred twenty-one".