1311340422 has 16 divisors (see below), whose sum is σ = 2997349632. Its totient is φ = 374668680.

The previous prime is 1311340417. The next prime is 1311340477. The reversal of 1311340422 is 2240431131.

It is a super-2 number, since 2×1311340422² = 3439227404742276168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15611154 + ... + 15611237.

It is an arithmetic number, because the mean of its divisors is an integer number (187334352).

Almost surely, 2^1311340422 is an apocalyptic number.

1311340422 is an abundant number, since it is smaller than the sum of its proper divisors (1686009210).

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

1311340422 is a wasteful number, since it uses less digits than its factorization.

1311340422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31222403.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1311340422 is about 36212.4346323193. The cubic root of 1311340422 is about 1094.5572522516.

Adding to 1311340422 its reverse (2240431131), we get a palindrome (3551771553).

It can be divided in two parts, 13113 and 40422, that added together give a palindrome (53535).

The spelling of 1311340422 in words is "one billion, three hundred eleven million, three hundred forty thousand, four hundred twenty-two".