20123402414143 has 4 divisors (see below), whose sum is σ = 22998174187600. Its totient is φ = 17248630640688.

The previous prime is 20123402414119. The next prime is 20123402414147. The reversal of 20123402414143 is 34141420432102.

It is a happy number.

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 20123402414143 - 2⁵ = 20123402414111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123402414147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1437385886718 + ... + 1437385886731.

It is an arithmetic number, because the mean of its divisors is an integer number (5749543546900).

Almost surely, 2^{20123402414143} is an apocalyptic number.

20123402414143 is a deficient number, since it is larger than the sum of its proper divisors (2874771773457).

20123402414143 is an equidigital number, since it uses as much as digits as its factorization.

20123402414143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874771773456.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 20123402414143 its reverse (34141420432102), we get a palindrome (54264822846245).

The spelling of 20123402414143 in words is "twenty trillion, one hundred twenty-three billion, four hundred two million, four hundred fourteen thousand, one hundred forty-three".