1242000200124 has 30 divisors (see below), whose sum is σ = 3246833857344. Its totient is φ = 414000066600.

The previous prime is 1242000200113. The next prime is 1242000200183. The reversal of 1242000200124 is 4210020002421.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1242000200097 and 1242000200106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1916666652 + ... + 1916667299.

Almost surely, 2^{1242000200124} is an apocalyptic number.

It is an amenable number.

1242000200124 is an abundant number, since it is smaller than the sum of its proper divisors (2004833657220).

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

1242000200124 is a wasteful number, since it uses less digits than its factorization.

1242000200124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833333967 (or 3833333956 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1242000200124 its reverse (4210020002421), we get a palindrome (5452020202545).

The spelling of 1242000200124 in words is "one trillion, two hundred forty-two billion, two hundred thousand, one hundred twenty-four".