123230021010 has 32 divisors (see below), whose sum is σ = 295795305792. Its totient is φ = 32856532800.

The previous prime is 123230021003. The next prime is 123230021011. The reversal of 123230021010 is 10120032321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (123230021011) 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 15 ways as a sum of consecutive naturals, for example, 89416 + ... + 504435.

It is an arithmetic number, because the mean of its divisors is an integer number (9243603306).

Almost surely, 2^123230021010 is an apocalyptic number.

123230021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123230021010 is an abundant number, since it is smaller than the sum of its proper divisors (172565284782).

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

123230021010 is a wasteful number, since it uses less digits than its factorization.

123230021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600778.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123230021010 its reverse (10120032321), we get a palindrome (133350053331).

The spelling of 123230021010 in words is "one hundred twenty-three billion, two hundred thirty million, twenty-one thousand, ten".