123311140402243 has 8 divisors (see below), whose sum is σ = 127437447646080. Its totient is φ = 119194116191040.

The previous prime is 123311140402217. The next prime is 123311140402253. The reversal of 123311140402243 is 342204041113321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123311140402243 - 2⁴⁵ = 88126768313411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123311140402253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2320731148 + ... + 2320784281.

It is an arithmetic number, because the mean of its divisors is an integer number (15929680955760).

Almost surely, 2^{123311140402243} is an apocalyptic number.

123311140402243 is a deficient number, since it is larger than the sum of its proper divisors (4126307243837).

123311140402243 is an equidigital number, since it uses as much as digits as its factorization.

123311140402243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641516317.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 123311140402243 its reverse (342204041113321), we get a palindrome (465515181515564).

The spelling of 123311140402243 in words is "one hundred twenty-three trillion, three hundred eleven billion, one hundred forty million, four hundred two thousand, two hundred forty-three".