1311440344030 has 32 divisors (see below), whose sum is σ = 2367459187200. Its totient is φ = 523050595872.

The previous prime is 1311440344009. The next prime is 1311440344043. The reversal of 1311440344030 is 304430441131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311440344030.

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, 38263041 + ... + 38297299.

It is an arithmetic number, because the mean of its divisors is an integer number (73983099600).

Almost surely, 2^{1311440344030} is an apocalyptic number.

1311440344030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311440344030 is a deficient number, since it is larger than the sum of its proper divisors (1056018843170).

1311440344030 is a wasteful number, since it uses less digits than its factorization.

1311440344030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45288.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1311440344030 its reverse (304430441131), we get a palindrome (1615870785161).

The spelling of 1311440344030 in words is "one trillion, three hundred eleven billion, four hundred forty million, three hundred forty-four thousand, thirty".