1313424223551 has 36 divisors (see below), whose sum is σ = 2149130563944. Its totient is φ = 796014637200.

The previous prime is 1313424223511. The next prime is 1313424223591. The reversal of 1313424223551 is 1553224243131.

1313424223551 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 42 + 42 + 23 + 551 = 666.

It is an interprime number because it is at equal distance from previous prime (1313424223511) and next prime (1313424223591).

It is not a de Polignac number, because 1313424223551 - 2¹⁸ = 1313423961407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313424223511) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9027220 + ... + 9171561.

Almost surely, 2^{1313424223551} is an apocalyptic number.

1313424223551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1313424223551 is a deficient number, since it is larger than the sum of its proper divisors (835706340393).

1313424223551 is an frugal number, since it uses more digits than its factorization.

1313424223551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18198816 (or 18198795 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

Adding to 1313424223551 its reverse (1553224243131), we get a palindrome (2866648466682).

The spelling of 1313424223551 in words is "one trillion, three hundred thirteen billion, four hundred twenty-four million, two hundred twenty-three thousand, five hundred fifty-one".