2240121343123 has 2 divisors, whose sum is σ = 2240121343124. Its totient is φ = 2240121343122.

The previous prime is 2240121343027. The next prime is 2240121343129. The reversal of 2240121343123 is 3213431210422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2240121343123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2240121343091 and 2240121343100.

It is not a weakly prime, because it can be changed into another prime (2240121343129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120060671561 + 1120060671562.

It is an arithmetic number, because the mean of its divisors is an integer number (1120060671562).

Almost surely, 2^{2240121343123} is an apocalyptic number.

2240121343123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240121343123 is an equidigital number, since it uses as much as digits as its factorization.

2240121343123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 2240121343123 its reverse (3213431210422), we get a palindrome (5453552553545).

The spelling of 2240121343123 in words is "two trillion, two hundred forty billion, one hundred twenty-one million, three hundred forty-three thousand, one hundred twenty-three".