11400214421 has 4 divisors (see below), whose sum is σ = 11587103244. Its totient is φ = 11213325600.

The previous prime is 11400214393. The next prime is 11400214429. The reversal of 11400214421 is 12441200411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12441200411 = 23 ⋅540921757.

It can be written as a sum of positive squares in 2 ways, for example, as 141943396 + 11258271025 = 11914^2 + 106105^2 .

It is a cyclic number.

It is not a de Polignac number, because 11400214421 - 2²² = 11396020117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11400214393 and 11400214402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11400214429) 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, 93444320 + ... + 93444441.

It is an arithmetic number, because the mean of its divisors is an integer number (2896775811).

Almost surely, 2^11400214421 is an apocalyptic number.

It is an amenable number.

11400214421 is a deficient number, since it is larger than the sum of its proper divisors (186888823).

11400214421 is an equidigital number, since it uses as much as digits as its factorization.

11400214421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186888822.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11400214421 its reverse (12441200411), we get a palindrome (23841414832).

The spelling of 11400214421 in words is "eleven billion, four hundred million, two hundred fourteen thousand, four hundred twenty-one".