1242323310400 has 42 divisors (see below), whose sum is σ = 3056891799590. Its totient is φ = 496929323520.

The previous prime is 1242323310313. The next prime is 1242323310533. The reversal of 1242323310400 is 40133232421.

It can be written as a sum of positive squares in 3 ways, for example, as 101801836096 + 1140521474304 = 319064^2 + 1067952^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 388224435 + ... + 388227634.

Almost surely, 2^{1242323310400} is an apocalyptic number.

1242323310400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242323310400 is an abundant number, since it is smaller than the sum of its proper divisors (1814568489190).

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

1242323310400 is an equidigital number, since it uses as much as digits as its factorization.

1242323310400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776452091 (or 776452076 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1242323310400 its reverse (40133232421), we get a palindrome (1282456542821).

The spelling of 1242323310400 in words is "one trillion, two hundred forty-two billion, three hundred twenty-three million, three hundred ten thousand, four hundred".