1200142000420 has 48 divisors (see below), whose sum is σ = 2911146594048. Its totient is φ = 410743784960.

The previous prime is 1200142000399. The next prime is 1200142000451. The reversal of 1200142000420 is 240002410021.

It is a junction number, because it is equal to n+sod(n) for n = 1200142000394 and 1200142000403.

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 15 ways as a sum of consecutive naturals, for example, 160443052 + ... + 160450531.

It is an arithmetic number, because the mean of its divisors is an integer number (60648887376).

Almost surely, 2^{1200142000420} is an apocalyptic number.

1200142000420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200142000420 is an abundant number, since it is smaller than the sum of its proper divisors (1711004593628).

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

1200142000420 is a wasteful number, since it uses less digits than its factorization.

1200142000420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320893620 (or 320893618 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1200142000420 its reverse (240002410021), we get a palindrome (1440144410441).

The spelling of 1200142000420 in words is "one trillion, two hundred billion, one hundred forty-two million, four hundred twenty", and thus it is an aban number.