11848402421 has 2 divisors, whose sum is σ = 11848402422. Its totient is φ = 11848402420.

The previous prime is 11848402411. The next prime is 11848402469. The reversal of 11848402421 is 12420484811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11742106321 + 106296100 = 108361^2 + 10310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11848402421 is a prime.

It is a super-3 number, since 3×11848402421³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11848402411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5924201210 + 5924201211.

It is an arithmetic number, because the mean of its divisors is an integer number (5924201211).

Almost surely, 2^11848402421 is an apocalyptic number.

It is an amenable number.

11848402421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11848402421 is an equidigital number, since it uses as much as digits as its factorization.

11848402421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16384, while the sum is 35.

The spelling of 11848402421 in words is "eleven billion, eight hundred forty-eight million, four hundred two thousand, four hundred twenty-one".