1254023321042 has 8 divisors (see below), whose sum is σ = 1881130481100. Its totient is φ = 626979827344.

The previous prime is 1254023321039. The next prime is 1254023321051. The reversal of 1254023321042 is 2401233204521.

It can be written as a sum of positive squares in 2 ways, for example, as 1205957581921 + 48065739121 = 1098161^2 + 219239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1254023320996 and 1254023321014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15867317 + ... + 15946152.

Almost surely, 2^{1254023321042} is an apocalyptic number.

1254023321042 is a deficient number, since it is larger than the sum of its proper divisors (627107160058).

1254023321042 is a wasteful number, since it uses less digits than its factorization.

1254023321042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31833180.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 1254023321042 its reverse (2401233204521), we get a palindrome (3655256525563).

The spelling of 1254023321042 in words is "one trillion, two hundred fifty-four billion, twenty-three million, three hundred twenty-one thousand, forty-two".