11214312132421 has 2 divisors, whose sum is σ = 11214312132422. Its totient is φ = 11214312132420.

The previous prime is 11214312132391. The next prime is 11214312132427. The reversal of 11214312132421 is 12423121341211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6069177144900 + 5145134987521 = 2463570^2 + 2268289^2 .

It is a cyclic number.

It is not a de Polignac number, because 11214312132421 - 2¹⁷ = 11214312001349 is a prime.

It is a super-3 number, since 3×11214312132421³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11214312132421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11214312132427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5607156066210 + 5607156066211.

It is an arithmetic number, because the mean of its divisors is an integer number (5607156066211).

Almost surely, 2^{11214312132421} is an apocalyptic number.

It is an amenable number.

11214312132421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11214312132421 is an equidigital number, since it uses as much as digits as its factorization.

11214312132421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 28.

Adding to 11214312132421 its reverse (12423121341211), we get a palindrome (23637433473632).

The spelling of 11214312132421 in words is "eleven trillion, two hundred fourteen billion, three hundred twelve million, one hundred thirty-two thousand, four hundred twenty-one".