11230781349 has 32 divisors (see below), whose sum is σ = 16138020096. Its totient is φ = 6921815040.

The previous prime is 11230781333. The next prime is 11230781357. The reversal of 11230781349 is 94318703211.

It is not a de Polignac number, because 11230781349 - 2⁴ = 11230781333 is a prime.

It is a super-2 number, since 2×11230781349² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230731349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 997419 + ... + 1008615.

It is an arithmetic number, because the mean of its divisors is an integer number (504313128).

Almost surely, 2^11230781349 is an apocalyptic number.

It is an amenable number.

11230781349 is a deficient number, since it is larger than the sum of its proper divisors (4907238747).

11230781349 is a wasteful number, since it uses less digits than its factorization.

11230781349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11565.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 11230781349 in words is "eleven billion, two hundred thirty million, seven hundred eighty-one thousand, three hundred forty-nine".