1201311432401 has 4 divisors (see below), whose sum is σ = 1201478033904. Its totient is φ = 1201144830900.

The previous prime is 1201311432383. The next prime is 1201311432427. The reversal of 1201311432401 is 1042341131021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1201311432401 - 2¹⁴ = 1201311416017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201311431401) 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, 83289935 + ... + 83304356.

It is an arithmetic number, because the mean of its divisors is an integer number (300369508476).

Almost surely, 2^{1201311432401} is an apocalyptic number.

It is an amenable number.

1201311432401 is a deficient number, since it is larger than the sum of its proper divisors (166601503).

1201311432401 is an equidigital number, since it uses as much as digits as its factorization.

1201311432401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166601502.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1201311432401 its reverse (1042341131021), we get a palindrome (2243652563422).

The spelling of 1201311432401 in words is "one trillion, two hundred one billion, three hundred eleven million, four hundred thirty-two thousand, four hundred one".