11149370381 has 2 divisors, whose sum is σ = 11149370382. Its totient is φ = 11149370380.

The previous prime is 11149370377. The next prime is 11149370429. The reversal of 11149370381 is 18307394111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10660562500 + 488807881 = 103250^2 + 22109^2 .

It is a cyclic number.

It is not a de Polignac number, because 11149370381 - 2² = 11149370377 is a prime.

It is a super-2 number, since 2×11149370381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11149370581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5574685190 + 5574685191.

It is an arithmetic number, because the mean of its divisors is an integer number (5574685191).

Almost surely, 2^11149370381 is an apocalyptic number.

It is an amenable number.

11149370381 is a deficient number, since it is larger than the sum of its proper divisors (1).

11149370381 is an equidigital number, since it uses as much as digits as its factorization.

11149370381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 11149370381 in words is "eleven billion, one hundred forty-nine million, three hundred seventy thousand, three hundred eighty-one".