1311323043310 has 16 divisors (see below), whose sum is σ = 2697578832096. Its totient is φ = 449596471968.

The previous prime is 1311323043253. The next prime is 1311323043341. The reversal of 1311323043310 is 133403231131.

It is a super-2 number, since 2×1311323043310² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9366593097 + ... + 9366593236.

It is an arithmetic number, because the mean of its divisors is an integer number (168598677006).

Almost surely, 2^{1311323043310} is an apocalyptic number.

1311323043310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311323043310 is an abundant number, since it is smaller than the sum of its proper divisors (1386255788786).

1311323043310 is a wasteful number, since it uses less digits than its factorization.

1311323043310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18733186347.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1311323043310 its reverse (133403231131), we get a palindrome (1444726274441).

The spelling of 1311323043310 in words is "one trillion, three hundred eleven billion, three hundred twenty-three million, forty-three thousand, three hundred ten".