1201344320231 has 16 divisors (see below), whose sum is σ = 1319849406720. Its totient is φ = 1084414019520.

The previous prime is 1201344320219. The next prime is 1201344320317. The reversal of 1201344320231 is 1320234431021.

It is a cyclic number.

It is not a de Polignac number, because 1201344320231 - 2¹⁰ = 1201344319207 is a prime.

It is a super-2 number, since 2×1201344320231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201344320231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201344320131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267296 + ... + 1572938.

It is an arithmetic number, because the mean of its divisors is an integer number (82490587920).

Almost surely, 2^{1201344320231} is an apocalyptic number.

1201344320231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201344320231 is a deficient number, since it is larger than the sum of its proper divisors (118505086489).

1201344320231 is a wasteful number, since it uses less digits than its factorization.

1201344320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306246.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1201344320231 its reverse (1320234431021), we get a palindrome (2521578751252).

The spelling of 1201344320231 in words is "one trillion, two hundred one billion, three hundred forty-four million, three hundred twenty thousand, two hundred thirty-one".