1311031331030 has 32 divisors (see below), whose sum is σ = 2376239392800. Its totient is φ = 520783748352.

The previous prime is 1311031331023. The next prime is 1311031331101. The reversal of 1311031331030 is 301331301131.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1311031330993 and 1311031331011.

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, 140756 + ... + 1625384.

It is an arithmetic number, because the mean of its divisors is an integer number (74257481025).

Almost surely, 2^{1311031331030} is an apocalyptic number.

1311031331030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311031331030 is a deficient number, since it is larger than the sum of its proper divisors (1065208061770).

1311031331030 is a wasteful number, since it uses less digits than its factorization.

1311031331030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485248.

The product of its (nonzero) digits is 243, while the sum is 20.

Adding to 1311031331030 its reverse (301331301131), we get a palindrome (1612362632161).

The spelling of 1311031331030 in words is "one trillion, three hundred eleven billion, thirty-one million, three hundred thirty-one thousand, thirty".