117123011 has 4 divisors (see below), whose sum is σ = 123287400. Its totient is φ = 110958624.

The previous prime is 117122987. The next prime is 117123023. The reversal of 117123011 is 110321711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110321711 = 2309 ⋅47779.

It is a cyclic number.

It is not a de Polignac number, because 117123011 - 2¹⁰ = 117121987 is a prime.

It is a super-2 number, since 2×117123011² = 27435599411412242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117123211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3082166 + ... + 3082203.

It is an arithmetic number, because the mean of its divisors is an integer number (30821850).

Almost surely, 2^117123011 is an apocalyptic number.

117123011 is a deficient number, since it is larger than the sum of its proper divisors (6164389).

117123011 is an equidigital number, since it uses as much as digits as its factorization.

117123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6164388.

The product of its (nonzero) digits is 42, while the sum is 17.

The square root of 117123011 is about 10822.3385180838. The cubic root of 117123011 is about 489.2686730218.

Adding to 117123011 its reverse (110321711), we get a palindrome (227444722).

The spelling of 117123011 in words is "one hundred seventeen million, one hundred twenty-three thousand, eleven".