123036378 has 32 divisors (see below), whose sum is σ = 263704896. Its totient is φ = 38131968.

The previous prime is 123036377. The next prime is 123036391. The reversal of 123036378 is 873630321.

It is a super-2 number, since 2×123036378² = 30275900622717768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123036371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1200 + ... + 15732.

It is an arithmetic number, because the mean of its divisors is an integer number (8240778).

Almost surely, 2^123036378 is an apocalyptic number.

123036378 is an abundant number, since it is smaller than the sum of its proper divisors (140668518).

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

123036378 is a wasteful number, since it uses less digits than its factorization.

123036378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14638.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 123036378 is about 11092.1764320624. The cubic root of 123036378 is about 497.3680068681.

Adding to 123036378 its reverse (873630321), we get a palindrome (996666699).

It can be divided in two parts, 12303 and 6378, that added together give a palindrome (18681).

The spelling of 123036378 in words is "one hundred twenty-three million, thirty-six thousand, three hundred seventy-eight".