123431402210 has 64 divisors (see below), whose sum is σ = 238568302080. Its totient is φ = 45839934720.

The previous prime is 123431402207. The next prime is 123431402219. The reversal of 123431402210 is 12204134321.

It is a super-2 number, since 2×123431402210² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123431402219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3191207 + ... + 3229653.

It is an arithmetic number, because the mean of its divisors is an integer number (3727629720).

Almost surely, 2^123431402210 is an apocalyptic number.

123431402210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123431402210 is a deficient number, since it is larger than the sum of its proper divisors (115136899870).

123431402210 is a wasteful number, since it uses less digits than its factorization.

123431402210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38811.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 123431402210 its reverse (12204134321), we get a palindrome (135635536531).

The spelling of 123431402210 in words is "one hundred twenty-three billion, four hundred thirty-one million, four hundred two thousand, two hundred ten".