313212425501 has 4 divisors (see below), whose sum is σ = 313312273212. Its totient is φ = 313112577792.

The previous prime is 313212425497. The next prime is 313212425503. The reversal of 313212425501 is 105524212313.

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 311626315225 + 1586110276 = 558235^2 + 39826^2 .

It is a cyclic number.

It is not a de Polignac number, because 313212425501 - 2² = 313212425497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313212425503) 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, 49919150 + ... + 49925423.

It is an arithmetic number, because the mean of its divisors is an integer number (78328068303).

Almost surely, 2^313212425501 is an apocalyptic number.

It is an amenable number.

313212425501 is a deficient number, since it is larger than the sum of its proper divisors (99847711).

313212425501 is an equidigital number, since it uses as much as digits as its factorization.

313212425501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99847710.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 313212425501 its reverse (105524212313), we get a palindrome (418736637814).

The spelling of 313212425501 in words is "three hundred thirteen billion, two hundred twelve million, four hundred twenty-five thousand, five hundred one".