142420431343030 has 32 divisors (see below), whose sum is σ = 256799776991904. Its totient is φ = 56869771934976.

The previous prime is 142420431343009. The next prime is 142420431343037. The reversal of 142420431343030 is 30343134024241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142420431343037) 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, 23187634 + ... + 28679386.

It is an arithmetic number, because the mean of its divisors is an integer number (8024993030997).

Almost surely, 2^{142420431343030} is an apocalyptic number.

142420431343030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142420431343030 is a deficient number, since it is larger than the sum of its proper divisors (114379345648874).

142420431343030 is a wasteful number, since it uses less digits than its factorization.

142420431343030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496240.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 142420431343030 its reverse (30343134024241), we get a palindrome (172763565367271).

The spelling of 142420431343030 in words is "one hundred forty-two trillion, four hundred twenty billion, four hundred thirty-one million, three hundred forty-three thousand, thirty".