1251042243241 has 8 divisors (see below), whose sum is σ = 1431301605120. Its totient is φ = 1071167641728.

The previous prime is 1251042243223. The next prime is 1251042243301. The reversal of 1251042243241 is 1423422401521.

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

It is a cyclic number.

It is not a de Polignac number, because 1251042243241 - 2⁹ = 1251042242729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1251042243541) 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, 96183121 + ... + 96196126.

It is an arithmetic number, because the mean of its divisors is an integer number (178912700640).

Almost surely, 2^{1251042243241} is an apocalyptic number.

It is an amenable number.

1251042243241 is a deficient number, since it is larger than the sum of its proper divisors (180259361879).

1251042243241 is an equidigital number, since it uses as much as digits as its factorization.

1251042243241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192380183.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 1251042243241 its reverse (1423422401521), we get a palindrome (2674464644762).

The spelling of 1251042243241 in words is "one trillion, two hundred fifty-one billion, forty-two million, two hundred forty-three thousand, two hundred forty-one".