123120010 has 32 divisors (see below), whose sum is σ = 241052112. Its totient is φ = 45004800.

The previous prime is 123119963. The next prime is 123120013. The reversal of 123120010 is 10021321.

It can be written as a sum of positive squares in 8 ways, for example, as 37908649 + 85211361 = 6157^2 + 9231^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (123120013) 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, 8442 + ... + 17818.

Almost surely, 2^123120010 is an apocalyptic number.

123120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123120010 is a deficient number, since it is larger than the sum of its proper divisors (117932102).

123120010 is a wasteful number, since it uses less digits than its factorization.

123120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9498.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 123120010 is about 11095.9456559592. The cubic root of 123120010 is about 497.4806739797.

Adding to 123120010 its reverse (10021321), we get a palindrome (133141331).

The spelling of 123120010 in words is "one hundred twenty-three million, one hundred twenty thousand, ten".