1242250013000 has 64 divisors (see below), whose sum is σ = 2907049083120. Its totient is φ = 496868544000.

The previous prime is 1242250012999. The next prime is 1242250013033. The reversal of 1242250013000 is 3100522421.

It can be written as a sum of positive squares in 8 ways, for example, as 105156221284 + 1137093791716 = 324278^2 + 1066346^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21852614 + ... + 21909386.

Almost surely, 2^{1242250013000} is an apocalyptic number.

1242250013000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242250013000 is an abundant number, since it is smaller than the sum of its proper divisors (1664799070120).

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

1242250013000 is a wasteful number, since it uses less digits than its factorization.

1242250013000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78675 (or 78661 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 1242250013000 its reverse (3100522421), we get a palindrome (1245350535421).

The spelling of 1242250013000 in words is "one trillion, two hundred forty-two billion, two hundred fifty million, thirteen thousand".