1128031 has 2 divisors, whose sum is σ = 1128032. Its totient is φ = 1128030.

The previous prime is 1127993. The next prime is 1128037. The reversal of 1128031 is 1308211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1128031 is a prime.

It is a super-2 number, since 2×1128031² = 2544907873922, which contains 22 as substring.

It is an Ulam number.

1128031 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1127996 and 1128014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1128037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564015 + 564016.

It is an arithmetic number, because the mean of its divisors is an integer number (564016).

2^1128031 is an apocalyptic number.

1128031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128031 is an equidigital number, since it uses as much as digits as its factorization.

1128031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1128031 is about 1062.0880377822. The cubic root of 1128031 is about 104.0975108624.

It can be divided in two parts, 11280 and 31, that added together give a palindrome (11311).

The spelling of 1128031 in words is "one million, one hundred twenty-eight thousand, thirty-one".