123117354 has 48 divisors (see below), whose sum is σ = 283458240. Its totient is φ = 39609360.

The previous prime is 123117341. The next prime is 123117361. The reversal of 123117354 is 453711321.

It is a super-2 number, since 2×123117354² = 30315765711922632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44059 + ... + 46769.

It is an arithmetic number, because the mean of its divisors is an integer number (5905380).

Almost surely, 2^123117354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123117354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141729120).

123117354 is an abundant number, since it is smaller than the sum of its proper divisors (160340886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123117354 is a wasteful number, since it uses less digits than its factorization.

123117354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780 (or 2745 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 123117354 is about 11095.8259719590. The cubic root of 123117354 is about 497.4770966620.

Adding to 123117354 its reverse (453711321), we get a palindrome (576828675).

The spelling of 123117354 in words is "one hundred twenty-three million, one hundred seventeen thousand, three hundred fifty-four".