1313353431 has 12 divisors (see below), whose sum is σ = 2042994408. Its totient is φ = 808217424.

The previous prime is 1313353427. The next prime is 1313353453. The reversal of 1313353431 is 1343533131.

1313353431 is a `hidden beast` number, since 1 + 313 + 3 + 5 + 343 + 1 = 666.

1313353431 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1313353431 - 2² = 1313353427 is a prime.

It is a super-2 number, since 2×1313353431² = 3449794469438943522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1313353395 and 1313353404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313353031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5612505 + ... + 5612738.

It is an arithmetic number, because the mean of its divisors is an integer number (170249534).

Almost surely, 2^1313353431 is an apocalyptic number.

1313353431 is a deficient number, since it is larger than the sum of its proper divisors (729640977).

1313353431 is a wasteful number, since it uses less digits than its factorization.

1313353431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11225262 (or 11225259 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 1313353431 is about 36240.2184182160. The cubic root of 1313353431 is about 1095.1170425964.

Adding to 1313353431 its reverse (1343533131), we get a palindrome (2656886562).

It can be divided in two parts, 13133 and 53431, that added together give a square (66564 = 258²).

The spelling of 1313353431 in words is "one billion, three hundred thirteen million, three hundred fifty-three thousand, four hundred thirty-one".