1311034403043 has 48 divisors (see below), whose sum is σ = 1938760214976. Its totient is φ = 853451838720.

The previous prime is 1311034403023. The next prime is 1311034403059. The reversal of 1311034403043 is 3403044301131.

1311034403043 is a `hidden beast` number, since 1 + 3 + 1 + 10 + 344 + 0 + 304 + 3 = 666.

It is not a de Polignac number, because 1311034403043 - 2¹⁴ = 1311034386659 is a prime.

It is a super-2 number, since 2×1311034403043² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1311034402998 and 1311034403016.

It is not an unprimeable number, because it can be changed into a prime (1311034403023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105407821 + ... + 105420257.

It is an arithmetic number, because the mean of its divisors is an integer number (40390837812).

Almost surely, 2^{1311034403043} is an apocalyptic number.

1311034403043 is a deficient number, since it is larger than the sum of its proper divisors (627725811933).

1311034403043 is a wasteful number, since it uses less digits than its factorization.

1311034403043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13884 (or 13881 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1311034403043 its reverse (3403044301131), we get a palindrome (4714078704174).

The spelling of 1311034403043 in words is "one trillion, three hundred eleven billion, thirty-four million, four hundred three thousand, forty-three".