11231047 has 2 divisors, whose sum is σ = 11231048. Its totient is φ = 11231046.

The previous prime is 11231039. The next prime is 11231069. The reversal of 11231047 is 74013211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11231047 - 2³ = 11231039 is a prime.

It is a super-2 number, since 2×11231047² = 252272833432418, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11231027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615523 + 5615524.

It is an arithmetic number, because the mean of its divisors is an integer number (5615524).

Almost surely, 2^11231047 is an apocalyptic number.

11231047 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231047 is an equidigital number, since it uses as much as digits as its factorization.

11231047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 11231047 is about 3351.2754288479. The cubic root of 11231047 is about 223.9443353924.

Adding to 11231047 its reverse (74013211), we get a palindrome (85244258).

The spelling of 11231047 in words is "eleven million, two hundred thirty-one thousand, forty-seven".