1127211305 has 16 divisors (see below), whose sum is σ = 1523225088. Its totient is φ = 793344000.

The previous prime is 1127211269. The next prime is 1127211307. The reversal of 1127211305 is 5031127211.

It is not a de Polignac number, because 1127211305 - 2¹² = 1127207209 is a prime.

It is a super-2 number, since 2×1127211305² = 2541210652239606050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1127211307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328856 + ... + 332265.

It is an arithmetic number, because the mean of its divisors is an integer number (95201568).

Almost surely, 2^1127211305 is an apocalyptic number.

It is an amenable number.

1127211305 is a deficient number, since it is larger than the sum of its proper divisors (396013783).

1127211305 is a wasteful number, since it uses less digits than its factorization.

1127211305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661168.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 1127211305 is about 33573.9676684183. The cubic root of 1127211305 is about 1040.7229025356.

Adding to 1127211305 its reverse (5031127211), we get a palindrome (6158338516).

The spelling of 1127211305 in words is "one billion, one hundred twenty-seven million, two hundred eleven thousand, three hundred five".