11293731 has 12 divisors (see below), whose sum is σ = 16876080. Its totient is φ = 7269360.

The previous prime is 11293699. The next prime is 11293739. The reversal of 11293731 is 13739211.

It is not a de Polignac number, because 11293731 - 2⁵ = 11293699 is a prime.

It is a super-2 number, since 2×11293731² = 255096719800722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11293695 and 11293704.

It is not an unprimeable number, because it can be changed into a prime (11293739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21375 + ... + 21896.

It is an arithmetic number, because the mean of its divisors is an integer number (1406340).

Almost surely, 2^11293731 is an apocalyptic number.

11293731 is a deficient number, since it is larger than the sum of its proper divisors (5582349).

11293731 is a wasteful number, since it uses less digits than its factorization.

11293731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43306 (or 43303 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 11293731 is about 3360.6146759187. The cubic root of 11293731 is about 224.3601972166.

The spelling of 11293731 in words is "eleven million, two hundred ninety-three thousand, seven hundred thirty-one".