1311211030 has 16 divisors (see below), whose sum is σ = 2436315264. Its totient is φ = 507565440.

The previous prime is 1311211019. The next prime is 1311211049. The reversal of 1311211030 is 301121131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311211030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2114547 + ... + 2115166.

It is an arithmetic number, because the mean of its divisors is an integer number (152269704).

Almost surely, 2^1311211030 is an apocalyptic number.

1311211030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311211030 is a deficient number, since it is larger than the sum of its proper divisors (1125104234).

1311211030 is a wasteful number, since it uses less digits than its factorization.

1311211030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229751.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1311211030 is about 36210.6480196088. The cubic root of 1311211030 is about 1094.5212505117.

Adding to 1311211030 its reverse (301121131), we get a palindrome (1612332161).

It can be divided in two parts, 13112 and 11030, that added together give a palindrome (24142).

The spelling of 1311211030 in words is "one billion, three hundred eleven million, two hundred eleven thousand, thirty".