1231313211030 has 32 divisors (see below), whose sum is σ = 3377316236544. Its totient is φ = 281443019616.

The previous prime is 1231313210957. The next prime is 1231313211043. The reversal of 1231313211030 is 301123131321.

It is a happy number.

It is a super-2 number, since 2×1231313211030² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1231313210988 and 1231313211006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2931697912 + ... + 2931698331.

It is an arithmetic number, because the mean of its divisors is an integer number (105541132392).

Almost surely, 2^{1231313211030} is an apocalyptic number.

1231313211030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231313211030 is an abundant number, since it is smaller than the sum of its proper divisors (2146003025514).

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

1231313211030 is a wasteful number, since it uses less digits than its factorization.

1231313211030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5863396260.

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

Adding to 1231313211030 its reverse (301123131321), we get a palindrome (1532436342351).

The spelling of 1231313211030 in words is "one trillion, two hundred thirty-one billion, three hundred thirteen million, two hundred eleven thousand, thirty".