11782031 has 2 divisors, whose sum is σ = 11782032. Its totient is φ = 11782030.

The previous prime is 11782027. The next prime is 11782039. The reversal of 11782031 is 13028711.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11782031 - 2² = 11782027 is a prime.

It is a super-2 number, since 2×11782031² = 277632508969922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11781988 and 11782006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11782039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5891015 + 5891016.

It is an arithmetic number, because the mean of its divisors is an integer number (5891016).

Almost surely, 2^11782031 is an apocalyptic number.

11782031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11782031 is an equidigital number, since it uses as much as digits as its factorization.

11782031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 11782031 is about 3432.4963219208. The cubic root of 11782031 is about 227.5481908940.

The spelling of 11782031 in words is "eleven million, seven hundred eighty-two thousand, thirty-one".