1311020003034 has 72 divisors (see below), whose sum is σ = 3305154835008. Its totient is φ = 374480865360.

The previous prime is 1311020002937. The next prime is 1311020003057. The reversal of 1311020003034 is 4303000201131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1311020002998 and 1311020003016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3278079 + ... + 3656205.

It is an arithmetic number, because the mean of its divisors is an integer number (45904928264).

Almost surely, 2^{1311020003034} is an apocalyptic number.

1311020003034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1311020003034 is an abundant number, since it is smaller than the sum of its proper divisors (1994134831974).

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

1311020003034 is a wasteful number, since it uses less digits than its factorization.

1311020003034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382080 (or 382070 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1311020003034 its reverse (4303000201131), we get a palindrome (5614020204165).

The spelling of 1311020003034 in words is "one trillion, three hundred eleven billion, twenty million, three thousand, thirty-four".