11200031 has 2 divisors, whose sum is σ = 11200032. Its totient is φ = 11200030.

The previous prime is 11200019. The next prime is 11200039. The reversal of 11200031 is 13000211.

It is an a-pointer prime, because the next prime (11200039) can be obtained adding 11200031 to its sum of digits (8).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11200031 - 2⁶ = 11199967 is a prime.

It is a super-2 number, since 2×11200031² = 250881388801922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11199991 and 11200018.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11200039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600015 + 5600016.

It is an arithmetic number, because the mean of its divisors is an integer number (5600016).

Almost surely, 2^11200031 is an apocalyptic number.

11200031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11200031 is an equidigital number, since it uses as much as digits as its factorization.

11200031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 11200031 is about 3346.6447376440. The cubic root of 11200031 is about 223.7379948408.

Adding to 11200031 its reverse (13000211), we get a palindrome (24200242).

The spelling of 11200031 in words is "eleven million, two hundred thousand, thirty-one".