1311020103000 has 64 divisors (see below), whose sum is σ = 4090382730720. Its totient is φ = 349605360000.

The previous prime is 1311020102981. The next prime is 1311020103023. The reversal of 1311020103000 is 3010201131.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 218500351 + ... + 218506350.

Almost surely, 2^{1311020103000} is an apocalyptic number.

1311020103000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311020103000 is an abundant number, since it is smaller than the sum of its proper divisors (2779362627720).

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

1311020103000 is a wasteful number, since it uses less digits than its factorization.

1311020103000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437006725 (or 437006711 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 1311020103000 its reverse (3010201131), we get a palindrome (1314030304131).

The spelling of 1311020103000 in words is "one trillion, three hundred eleven billion, twenty million, one hundred three thousand".