1201442400311 has 4 divisors (see below), whose sum is σ = 1201448530800. Its totient is φ = 1201436269824.

The previous prime is 1201442400259. The next prime is 1201442400331. The reversal of 1201442400311 is 1130042441021.

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 1201442400311 - 2⁶ = 1201442400247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201442400331) 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, 2761226 + ... + 3166583.

It is an arithmetic number, because the mean of its divisors is an integer number (300362132700).

Almost surely, 2^{1201442400311} is an apocalyptic number.

1201442400311 is a deficient number, since it is larger than the sum of its proper divisors (6130489).

1201442400311 is an equidigital number, since it uses as much as digits as its factorization.

1201442400311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6130488.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1201442400311 its reverse (1130042441021), we get a palindrome (2331484841332).

The spelling of 1201442400311 in words is "one trillion, two hundred one billion, four hundred forty-two million, four hundred thousand, three hundred eleven".