313021442051 has 4 divisors (see below), whose sum is σ = 331434468072. Its totient is φ = 294608416032.

The previous prime is 313021442023. The next prime is 313021442093. The reversal of 313021442051 is 150244120313.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 313021442051 - 2¹⁴ = 313021425667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313021442051.

It is not an unprimeable number, because it can be changed into a prime (313021442351) 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, 9206512985 + ... + 9206513018.

It is an arithmetic number, because the mean of its divisors is an integer number (82858617018).

Almost surely, 2^313021442051 is an apocalyptic number.

313021442051 is a deficient number, since it is larger than the sum of its proper divisors (18413026021).

313021442051 is a wasteful number, since it uses less digits than its factorization.

313021442051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18413026020.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 313021442051 its reverse (150244120313), we get a palindrome (463265562364).

The spelling of 313021442051 in words is "three hundred thirteen billion, twenty-one million, four hundred forty-two thousand, fifty-one".