123231021310 has 16 divisors (see below), whose sum is σ = 221889366000. Its totient is φ = 49276069056.

The previous prime is 123231021301. The next prime is 123231021311. The reversal of 123231021310 is 13120132321.

It is a super-2 number, since 2×123231021310² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231021311) 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, 2010735 + ... + 2071114.

It is an arithmetic number, because the mean of its divisors is an integer number (13868085375).

Almost surely, 2^123231021310 is an apocalyptic number.

123231021310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123231021310 is a deficient number, since it is larger than the sum of its proper divisors (98658344690).

123231021310 is a wasteful number, since it uses less digits than its factorization.

123231021310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084875.

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

Adding to 123231021310 its reverse (13120132321), we get a palindrome (136351153631).

The spelling of 123231021310 in words is "one hundred twenty-three billion, two hundred thirty-one million, twenty-one thousand, three hundred ten".