40210144123 has 2 divisors, whose sum is σ = 40210144124. Its totient is φ = 40210144122.

The previous prime is 40210144099. The next prime is 40210144127. The reversal of 40210144123 is 32144101204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40210144123 is a prime.

It is a super-4 number, since 4×40210144123⁴ (a number of 44 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40210144094 and 40210144103.

It is not a weakly prime, because it can be changed into another prime (40210144127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20105072061 + 20105072062.

It is an arithmetic number, because the mean of its divisors is an integer number (20105072062).

Almost surely, 2^40210144123 is an apocalyptic number.

40210144123 is a deficient number, since it is larger than the sum of its proper divisors (1).

40210144123 is an equidigital number, since it uses as much as digits as its factorization.

40210144123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 40210144123 its reverse (32144101204), we get a palindrome (72354245327).

It can be divided in two parts, 402101 and 44123, that added together give a square (446224 = 668²).

The spelling of 40210144123 in words is "forty billion, two hundred ten million, one hundred forty-four thousand, one hundred twenty-three".