1241211801439 has 4 divisors (see below), whose sum is σ = 1281250891840. Its totient is φ = 1201172711040.

The previous prime is 1241211801409. The next prime is 1241211801443. The reversal of 1241211801439 is 9341081121421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1241211801439 - 2⁵ = 1241211801407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1241211801398 and 1241211801407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241211801409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20019545154 + ... + 20019545215.

It is an arithmetic number, because the mean of its divisors is an integer number (320312722960).

Almost surely, 2^{1241211801439} is an apocalyptic number.

1241211801439 is a deficient number, since it is larger than the sum of its proper divisors (40039090401).

1241211801439 is an equidigital number, since it uses as much as digits as its factorization.

1241211801439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40039090400.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 1241211801439 in words is "one trillion, two hundred forty-one billion, two hundred eleven million, eight hundred one thousand, four hundred thirty-nine".