313001102021 has 4 divisors (see below), whose sum is σ = 323794243500. Its totient is φ = 302207960544.

The previous prime is 313001101999. The next prime is 313001102069. The reversal of 313001102021 is 120201100313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120201100313 = 7 ⋅17171585759.

It can be written as a sum of positive squares in 2 ways, for example, as 266089873921 + 46911228100 = 515839^2 + 216590^2 .

It is a cyclic number.

It is not a de Polignac number, because 313001102021 - 2²⁶ = 312933993157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313001101987 and 313001102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313001102081) 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, 5396570696 + ... + 5396570753.

It is an arithmetic number, because the mean of its divisors is an integer number (80948560875).

Almost surely, 2^313001102021 is an apocalyptic number.

It is an amenable number.

313001102021 is a deficient number, since it is larger than the sum of its proper divisors (10793141479).

313001102021 is a wasteful number, since it uses less digits than its factorization.

313001102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10793141478.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 313001102021 its reverse (120201100313), we get a palindrome (433202202334).

The spelling of 313001102021 in words is "three hundred thirteen billion, one million, one hundred two thousand, twenty-one".