20340142023 has 16 divisors (see below), whose sum is σ = 28502933760. Its totient is φ = 12877206144.

The previous prime is 20340142019. The next prime is 20340142027. The reversal of 20340142023 is 32024104302.

It is an interprime number because it is at equal distance from previous prime (20340142019) and next prime (20340142027).

It is not a de Polignac number, because 20340142023 - 2² = 20340142019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340142027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1050786 + ... + 1069967.

It is an arithmetic number, because the mean of its divisors is an integer number (1781433360).

Almost surely, 2^20340142023 is an apocalyptic number.

20340142023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20340142023 is a deficient number, since it is larger than the sum of its proper divisors (8162791737).

20340142023 is a wasteful number, since it uses less digits than its factorization.

20340142023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120918.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20340142023 its reverse (32024104302), we get a palindrome (52364246325).

The spelling of 20340142023 in words is "twenty billion, three hundred forty million, one hundred forty-two thousand, twenty-three".