20423144132402 has 16 divisors (see below), whose sum is σ = 35178621472800. Its totient is φ = 8794655367840.

The previous prime is 20423144132393. The next prime is 20423144132411.

It is a happy number.

20423144132402 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (20423144132393) and next prime (20423144132411).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24429597827 + ... + 24429598662.

It is an arithmetic number, because the mean of its divisors is an integer number (2198663842050).

Almost surely, 2^{20423144132402} is an apocalyptic number.

20423144132402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20423144132402 is a deficient number, since it is larger than the sum of its proper divisors (14755477340398).

20423144132402 is a wasteful number, since it uses less digits than its factorization.

20423144132402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48859196521.

The product of its (nonzero) digits is 36864, while the sum is 32.

It can be divided in two parts, 2042314 and 4132402, that added together give a palindrome (6174716).

The spelling of 20423144132402 in words is "twenty trillion, four hundred twenty-three billion, one hundred forty-four million, one hundred thirty-two thousand, four hundred two".