1311700830 has 64 divisors (see below), whose sum is σ = 3545081856. Its totient is φ = 307728000.

The previous prime is 1311700811. The next prime is 1311700937. The reversal of 1311700830 is 380071131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311700830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53881 + ... + 74340.

It is an arithmetic number, because the mean of its divisors is an integer number (55391904).

Almost surely, 2^1311700830 is an apocalyptic number.

1311700830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311700830 is an abundant number, since it is smaller than the sum of its proper divisors (2233381026).

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

1311700830 is a wasteful number, since it uses less digits than its factorization.

1311700830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128273.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1311700830 is about 36217.4105921448. The cubic root of 1311700830 is about 1094.6575188818.

Adding to 1311700830 its reverse (380071131), we get a palindrome (1691771961).

The spelling of 1311700830 in words is "one billion, three hundred eleven million, seven hundred thousand, eight hundred thirty".