1243122004004 has 24 divisors (see below), whose sum is σ = 2205348905760. Its totient is φ = 613022969664.

The previous prime is 1243122004001. The next prime is 1243122004031. The reversal of 1243122004004 is 4004002213421.

It is not an unprimeable number, because it can be changed into a prime (1243122004001) 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, 9454787 + ... + 9585365.

It is an arithmetic number, because the mean of its divisors is an integer number (91889537740).

Almost surely, 2^{1243122004004} is an apocalyptic number.

It is an amenable number.

1243122004004 is a deficient number, since it is larger than the sum of its proper divisors (962226901756).

1243122004004 is a wasteful number, since it uses less digits than its factorization.

1243122004004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163259 (or 163257 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 1243122004004 its reverse (4004002213421), we get a palindrome (5247124217425).

The spelling of 1243122004004 in words is "one trillion, two hundred forty-three billion, one hundred twenty-two million, four thousand, four".