1201310021231 has 8 divisors (see below), whose sum is σ = 1204015058400. Its totient is φ = 1198605414240.

The previous prime is 1201310021209. The next prime is 1201310021257. The reversal of 1201310021231 is 1321200131021.

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 1201310021231 - 2¹⁸ = 1201309759087 is a prime.

It is a super-2 number, since 2×1201310021231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201310321231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5854805 + ... + 6056513.

It is an arithmetic number, because the mean of its divisors is an integer number (150501882300).

Almost surely, 2^{1201310021231} is an apocalyptic number.

1201310021231 is a deficient number, since it is larger than the sum of its proper divisors (2705037169).

1201310021231 is a wasteful number, since it uses less digits than its factorization.

1201310021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215089.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1201310021231 its reverse (1321200131021), we get a palindrome (2522510152252).

The spelling of 1201310021231 in words is "one trillion, two hundred one billion, three hundred ten million, twenty-one thousand, two hundred thirty-one".