313141252421 has 8 divisors (see below), whose sum is σ = 314872680984. Its totient is φ = 311413800960.

The previous prime is 313141252397. The next prime is 313141252429. The reversal of 313141252421 is 124252141313.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30796740100 + 282344512321 = 175490^2 + 531361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313141252421 is a prime.

It is a super-2 number, since 2×313141252421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313141252429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836300 + ... + 1151381.

It is an arithmetic number, because the mean of its divisors is an integer number (39359085123).

Almost surely, 2^313141252421 is an apocalyptic number.

It is an amenable number.

313141252421 is a deficient number, since it is larger than the sum of its proper divisors (1731428563).

313141252421 is a wasteful number, since it uses less digits than its factorization.

313141252421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988551.

The product of its digits is 5760, while the sum is 29.

Adding to 313141252421 its reverse (124252141313), we get a palindrome (437393393734).

The spelling of 313141252421 in words is "three hundred thirteen billion, one hundred forty-one million, two hundred fifty-two thousand, four hundred twenty-one".