1167142123 has 12 divisors (see below), whose sum is σ = 1437561432. Its totient is φ = 941559360.

The previous prime is 1167142111. The next prime is 1167142133. The reversal of 1167142123 is 3212417611.

It is not a de Polignac number, because 1167142123 - 2¹³ = 1167133931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1167142091 and 1167142100.

It is not an unprimeable number, because it can be changed into a prime (1167142133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 699733 + ... + 701398.

It is an arithmetic number, because the mean of its divisors is an integer number (119796786).

Almost surely, 2^1167142123 is an apocalyptic number.

1167142123 is a deficient number, since it is larger than the sum of its proper divisors (270419309).

1167142123 is a wasteful number, since it uses less digits than its factorization.

1167142123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401162 (or 1401155 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 1167142123 is about 34163.4618122930. The cubic root of 1167142123 is about 1052.8695874810.

Adding to 1167142123 its reverse (3212417611), we get a palindrome (4379559734).

The spelling of 1167142123 in words is "one billion, one hundred sixty-seven million, one hundred forty-two thousand, one hundred twenty-three".