311454552551 has 4 divisors (see below), whose sum is σ = 311458362600. Its totient is φ = 311450742504.

The previous prime is 311454552499. The next prime is 311454552583. The reversal of 311454552551 is 155255454113.

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-311454552551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311454552499 and 311454552508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311454552151) 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, 1779656 + ... + 1946813.

It is an arithmetic number, because the mean of its divisors is an integer number (77864590650).

Almost surely, 2^311454552551 is an apocalyptic number.

311454552551 is a deficient number, since it is larger than the sum of its proper divisors (3810049).

311454552551 is an equidigital number, since it uses as much as digits as its factorization.

311454552551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810048.

The product of its digits is 300000, while the sum is 41.

The spelling of 311454552551 in words is "three hundred eleven billion, four hundred fifty-four million, five hundred fifty-two thousand, five hundred fifty-one".