11285309957243 has 10 divisors (see below), whose sum is σ = 13165411577244. Its totient is φ = 9673122818436.

The previous prime is 11285309957219. The next prime is 11285309957263. The reversal of 11285309957243 is 34275990358211.

It is not a de Polignac number, because 11285309957243 - 2⁴⁰ = 10185798329467 is a prime.

It is a super-2 number, since 2×11285309957243² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11285309957263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2350124621 + ... + 2350129422.

Almost surely, 2^{11285309957243} is an apocalyptic number.

11285309957243 is a deficient number, since it is larger than the sum of its proper divisors (1880101620001).

11285309957243 is an frugal number, since it uses more digits than its factorization.

11285309957243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700254071 (or 4700254050 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 59.

The spelling of 11285309957243 in words is "eleven trillion, two hundred eighty-five billion, three hundred nine million, nine hundred fifty-seven thousand, two hundred forty-three".