1154123411 has 12 divisors (see below), whose sum is σ = 1388848320. Its totient is φ = 955135440.

The previous prime is 1154123329. The next prime is 1154123413. The reversal of 1154123411 is 1143214511.

It is not a de Polignac number, because 1154123411 - 2¹⁴ = 1154107027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154123413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404675 + ... + 407516.

It is an arithmetic number, because the mean of its divisors is an integer number (115737360).

Almost surely, 2^1154123411 is an apocalyptic number.

1154123411 is a deficient number, since it is larger than the sum of its proper divisors (234724909).

1154123411 is an equidigital number, since it uses as much as digits as its factorization.

1154123411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812234 (or 812227 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 1154123411 is about 33972.3918940071. The cubic root of 1154123411 is about 1048.9402492864.

Adding to 1154123411 its reverse (1143214511), we get a palindrome (2297337922).

The spelling of 1154123411 in words is "one billion, one hundred fifty-four million, one hundred twenty-three thousand, four hundred eleven".