11287212933 has 16 divisors (see below), whose sum is σ = 15954960896. Its totient is φ = 7085257920.

The previous prime is 11287212929. The next prime is 11287212977. The reversal of 11287212933 is 33921278211.

It is not a de Polignac number, because 11287212933 - 2² = 11287212929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11287212891 and 11287212900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11287212983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1636666 + ... + 1643547.

It is an arithmetic number, because the mean of its divisors is an integer number (997185056).

Almost surely, 2^11287212933 is an apocalyptic number.

It is an amenable number.

11287212933 is a deficient number, since it is larger than the sum of its proper divisors (4667747963).

11287212933 is a wasteful number, since it uses less digits than its factorization.

11287212933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280284.

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

The spelling of 11287212933 in words is "eleven billion, two hundred eighty-seven million, two hundred twelve thousand, nine hundred thirty-three".