123012023210 has 16 divisors (see below), whose sum is σ = 225599409576. Its totient is φ = 48276416448.

The previous prime is 123012023179. The next prime is 123012023213. The reversal of 123012023210 is 12320210321.

It can be written as a sum of positive squares in 4 ways, for example, as 103518558049 + 19493465161 = 321743^2 + 139619^2 .

It is not an unprimeable number, because it can be changed into a prime (123012023213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116048549 + ... + 116049608.

Almost surely, 2^123012023210 is an apocalyptic number.

123012023210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123012023210 is a deficient number, since it is larger than the sum of its proper divisors (102587386366).

123012023210 is a wasteful number, since it uses less digits than its factorization.

123012023210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232098217.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 123012023210 its reverse (12320210321), we get a palindrome (135332233531).

The spelling of 123012023210 in words is "one hundred twenty-three billion, twelve million, twenty-three thousand, two hundred ten".