1311345454 has 4 divisors (see below), whose sum is σ = 1967018184. Its totient is φ = 655672726.

The previous prime is 1311345421. The next prime is 1311345463. The reversal of 1311345454 is 4545431131.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1311345454² = 3439253799452932232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327836362 + ... + 327836365.

It is an arithmetic number, because the mean of its divisors is an integer number (491754546).

Almost surely, 2^1311345454 is an apocalyptic number.

1311345454 is a deficient number, since it is larger than the sum of its proper divisors (655672730).

1311345454 is an equidigital number, since it uses as much as digits as its factorization.

1311345454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655672729.

The product of its digits is 14400, while the sum is 31.

The square root of 1311345454 is about 36212.5041111492. The cubic root of 1311345454 is about 1094.5586522961.

Adding to 1311345454 its reverse (4545431131), we get a palindrome (5856776585).

The spelling of 1311345454 in words is "one billion, three hundred eleven million, three hundred forty-five thousand, four hundred fifty-four".