313421510032553 has 4 divisors (see below), whose sum is σ = 337530856958148. Its totient is φ = 289312163106960.

The previous prime is 313421510032511. The next prime is 313421510032601. The reversal of 313421510032553 is 355230015124313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 84526638782569 + 228894871249984 = 9193837^2 + 15129272^2 .

It is a cyclic number.

It is not a de Polignac number, because 313421510032553 - 2⁴⁸ = 31946533321897 is a prime.

It is a super-3 number, since 3×313421510032553³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313421510032753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12054673462778 + ... + 12054673462803.

It is an arithmetic number, because the mean of its divisors is an integer number (84382714239537).

Almost surely, 2^{313421510032553} is an apocalyptic number.

It is an amenable number.

313421510032553 is a deficient number, since it is larger than the sum of its proper divisors (24109346925595).

313421510032553 is a wasteful number, since it uses less digits than its factorization.

313421510032553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24109346925594.

The product of its (nonzero) digits is 162000, while the sum is 38.

Adding to 313421510032553 its reverse (355230015124313), we get a palindrome (668651525156866).

The spelling of 313421510032553 in words is "three hundred thirteen trillion, four hundred twenty-one billion, five hundred ten million, thirty-two thousand, five hundred fifty-three".