311120441432243 has 4 divisors (see below), whose sum is σ = 311129013932688. Its totient is φ = 311111868931800.

The previous prime is 311120441432209. The next prime is 311120441432249. The reversal of 311120441432243 is 342234144021113.

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 311120441432243 - 2⁴² = 306722394921139 is a prime.

It is a super-2 number, since 2×311120441432243² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311120441432249) 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, 4286195783 + ... + 4286268368.

It is an arithmetic number, because the mean of its divisors is an integer number (77782253483172).

Almost surely, 2^{311120441432243} is an apocalyptic number.

311120441432243 is a deficient number, since it is larger than the sum of its proper divisors (8572500445).

311120441432243 is an equidigital number, since it uses as much as digits as its factorization.

311120441432243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572500444.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 311120441432243 its reverse (342234144021113), we get a palindrome (653354585453356).

The spelling of 311120441432243 in words is "three hundred eleven trillion, one hundred twenty billion, four hundred forty-one million, four hundred thirty-two thousand, two hundred forty-three".