30402420142142 has 16 divisors (see below), whose sum is σ = 45684858272352. Its totient is φ = 15174136581120.

The previous prime is 30402420142141. The next prime is 30402420142177. The reversal of 30402420142142 is 24124102420403.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30402420142141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23835167 + ... + 25078277.

It is an arithmetic number, because the mean of its divisors is an integer number (2855303642022).

Almost surely, 2^{30402420142142} is an apocalyptic number.

30402420142142 is a deficient number, since it is larger than the sum of its proper divisors (15282438130210).

30402420142142 is a wasteful number, since it uses less digits than its factorization.

30402420142142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264883.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 30402420142142 its reverse (24124102420403), we get a palindrome (54526522562545).

The spelling of 30402420142142 in words is "thirty trillion, four hundred two billion, four hundred twenty million, one hundred forty-two thousand, one hundred forty-two".