313243215001 has 4 divisors (see below), whose sum is σ = 313245477504. Its totient is φ = 313240952500.

The previous prime is 313243214953. The next prime is 313243215023. The reversal of 313243215001 is 100512342313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 313243215001 - 2⁷ = 313243214873 is a prime.

It is a super-2 number, since 2×313243215001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313243215101) 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, 909025 + ... + 1205326.

It is an arithmetic number, because the mean of its divisors is an integer number (78311369376).

Almost surely, 2^313243215001 is an apocalyptic number.

It is an amenable number.

313243215001 is a deficient number, since it is larger than the sum of its proper divisors (2262503).

313243215001 is a wasteful number, since it uses less digits than its factorization.

313243215001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262502.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 313243215001 its reverse (100512342313), we get a palindrome (413755557314).

The spelling of 313243215001 in words is "three hundred thirteen billion, two hundred forty-three million, two hundred fifteen thousand, one".