1231123301210 has 64 divisors (see below), whose sum is σ = 2431625712768. Its totient is φ = 445068000000.

The previous prime is 1231123301203. The next prime is 1231123301227. The reversal of 1231123301210 is 121033211321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14895800 + ... + 14978220.

It is an arithmetic number, because the mean of its divisors is an integer number (37994151762).

Almost surely, 2^{1231123301210} is an apocalyptic number.

1231123301210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231123301210 is a deficient number, since it is larger than the sum of its proper divisors (1200502411558).

1231123301210 is a wasteful number, since it uses less digits than its factorization.

1231123301210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83231.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1231123301210 its reverse (121033211321), we get a palindrome (1352156512531).

The spelling of 1231123301210 in words is "one trillion, two hundred thirty-one billion, one hundred twenty-three million, three hundred one thousand, two hundred ten".