451013121311 has 4 divisors (see below), whose sum is σ = 451126816512. Its totient is φ = 450899426112.

The previous prime is 451013121287. The next prime is 451013121337. The reversal of 451013121311 is 113121310154.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451013121311 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 (451013121211) 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, 56841650 + ... + 56849583.

It is an arithmetic number, because the mean of its divisors is an integer number (112781704128).

Almost surely, 2^451013121311 is an apocalyptic number.

451013121311 is a deficient number, since it is larger than the sum of its proper divisors (113695201).

451013121311 is a wasteful number, since it uses less digits than its factorization.

451013121311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113695200.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 451013121311 its reverse (113121310154), we get a palindrome (564134431465).

The spelling of 451013121311 in words is "four hundred fifty-one billion, thirteen million, one hundred twenty-one thousand, three hundred eleven".