1230000004000 has 48 divisors (see below), whose sum is σ = 3022110019656. Its totient is φ = 492000000000.

The previous prime is 1230000003971. The next prime is 1230000004001. The reversal of 1230000004000 is 4000000321.

It can be written as a sum of positive squares in 4 ways, for example, as 485569261584 + 744430742416 = 696828^2 + 862804^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1230000004001) 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, 153746001 + ... + 153754000.

Almost surely, 2^{1230000004000} is an apocalyptic number.

1230000004000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230000004000 is an abundant number, since it is smaller than the sum of its proper divisors (1792110015656).

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

1230000004000 is an equidigital number, since it uses as much as digits as its factorization.

1230000004000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307500026 (or 307500008 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 1230000004000 its reverse (4000000321), we get a palindrome (1234000004321).

The spelling of 1230000004000 in words is "one trillion, two hundred thirty billion, four thousand".