123203131210 has 16 divisors (see below), whose sum is σ = 221790019176. Its totient is φ = 49275834048.

The previous prime is 123203131201. The next prime is 123203131211. The reversal of 123203131210 is 12131302321.

It can be written as a sum of positive squares in 4 ways, for example, as 109837227889 + 13365903321 = 331417^2 + 115611^2 .

It is not an unprimeable number, because it can be changed into a prime (123203131211) 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, 581157 + ... + 764296.

Almost surely, 2^123203131210 is an apocalyptic number.

123203131210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123203131210 is a deficient number, since it is larger than the sum of its proper divisors (98586887966).

123203131210 is a wasteful number, since it uses less digits than its factorization.

123203131210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354617.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123203131210 its reverse (12131302321), we get a palindrome (135334433531).

The spelling of 123203131210 in words is "one hundred twenty-three billion, two hundred three million, one hundred thirty-one thousand, two hundred ten".