20143430430402 has 8 divisors (see below), whose sum is σ = 40286860860816. Its totient is φ = 6714476810132.

The previous prime is 20143430430371. The next prime is 20143430430433. The reversal of 20143430430402 is 20403403434102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20143430430371) and next prime (20143430430433).

It is a sphenic number, since it is the product of 3 distinct primes.

20143430430402 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20143430430402.

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 3 ways as a sum of consecutive naturals, for example, 1678619202528 + ... + 1678619202539.

It is an arithmetic number, because the mean of its divisors is an integer number (5035857607602).

Almost surely, 2^{20143430430402} is an apocalyptic number.

20143430430402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20143430430402 is a wasteful number, since it uses less digits than its factorization.

20143430430402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357238405072.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 20143430430402 its reverse (20403403434102), we get a palindrome (40546833864504).

The spelling of 20143430430402 in words is "twenty trillion, one hundred forty-three billion, four hundred thirty million, four hundred thirty thousand, four hundred two".