1125771311 has 8 divisors (see below), whose sum is σ = 1293705504. Its totient is φ = 959614560.

The previous prime is 1125771301. The next prime is 1125771313. The reversal of 1125771311 is 1131775211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1125771311 - 2¹⁸ = 1125509167 is a prime.

It is a super-2 number, since 2×1125771311² = 2534722089341317442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125771313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443000 + ... + 445533.

It is an arithmetic number, because the mean of its divisors is an integer number (161713188).

Almost surely, 2^1125771311 is an apocalyptic number.

1125771311 is a deficient number, since it is larger than the sum of its proper divisors (167934193).

1125771311 is an equidigital number, since it uses as much as digits as its factorization.

1125771311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888721.

The product of its digits is 1470, while the sum is 29.

The square root of 1125771311 is about 33552.5157179011. The cubic root of 1125771311 is about 1040.2795448609.

The spelling of 1125771311 in words is "one billion, one hundred twenty-five million, seven hundred seventy-one thousand, three hundred eleven".