1311203013210 has 24 divisors (see below), whose sum is σ = 3409127834580. Its totient is φ = 349654136832.

The previous prime is 1311203013181. The next prime is 1311203013277. The reversal of 1311203013210 is 123103021131.

1311203013210 is a `hidden beast` number, since 1 + 31 + 12 + 0 + 301 + 321 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1230948089361 + 80254923849 = 1109481^2 + 283293^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7284461095 + ... + 7284461274.

Almost surely, 2^{1311203013210} is an apocalyptic number.

1311203013210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311203013210 is an abundant number, since it is smaller than the sum of its proper divisors (2097924821370).

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

1311203013210 is a wasteful number, since it uses less digits than its factorization.

1311203013210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14568922382 (or 14568922379 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1311203013210 its reverse (123103021131), we get a palindrome (1434306034341).

The spelling of 1311203013210 in words is "one trillion, three hundred eleven billion, two hundred three million, thirteen thousand, two hundred ten".