1231333101210 has 64 divisors (see below), whose sum is σ = 2978927050752. Its totient is φ = 325719890496.

The previous prime is 1231333101197. The next prime is 1231333101211. The reversal of 1231333101210 is 121013331321.

It is a happy number.

It is a super-2 number, since 2×1231333101210² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231333101211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29266449 + ... + 29308491.

It is an arithmetic number, because the mean of its divisors is an integer number (46545735168).

Almost surely, 2^{1231333101210} is an apocalyptic number.

1231333101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231333101210 is an abundant number, since it is smaller than the sum of its proper divisors (1747593949542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231333101210 is a wasteful number, since it uses less digits than its factorization.

1231333101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49867.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1231333101210 its reverse (121013331321), we get a palindrome (1352346432531).

The spelling of 1231333101210 in words is "one trillion, two hundred thirty-one billion, three hundred thirty-three million, one hundred one thousand, two hundred ten".