313123451 has 2 divisors, whose sum is σ = 313123452. Its totient is φ = 313123450.

The previous prime is 313123441. The next prime is 313123457. The reversal of 313123451 is 154321313.

It is a strong prime.

It is an emirp because it is prime and its reverse (154321313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313123451 - 2¹⁰ = 313122427 is a prime.

It is a super-2 number, since 2×313123451² = 196092591132298802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313123457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156561725 + 156561726.

It is an arithmetic number, because the mean of its divisors is an integer number (156561726).

Almost surely, 2^313123451 is an apocalyptic number.

313123451 is a deficient number, since it is larger than the sum of its proper divisors (1).

313123451 is an equidigital number, since it uses as much as digits as its factorization.

313123451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 313123451 is about 17695.2946005428. The cubic root of 313123451 is about 679.0553860727.

Adding to 313123451 its reverse (154321313), we get a palindrome (467444764).

The spelling of 313123451 in words is "three hundred thirteen million, one hundred twenty-three thousand, four hundred fifty-one".