1320001031231 has 8 divisors (see below), whose sum is σ = 1370831616720. Its totient is φ = 1269524666368.

The previous prime is 1320001031221. The next prime is 1320001031263. The reversal of 1320001031231 is 1321301000231.

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 1320001031231 - 2¹⁰ = 1320001030207 is a prime.

It is a super-2 number, since 2×1320001031231² (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 (1320001031201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88547561 + ... + 88562466.

It is an arithmetic number, because the mean of its divisors is an integer number (171353952090).

Almost surely, 2^{1320001031231} is an apocalyptic number.

1320001031231 is a deficient number, since it is larger than the sum of its proper divisors (50830585489).

1320001031231 is a wasteful number, since it uses less digits than its factorization.

1320001031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177110313.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1320001031231 its reverse (1321301000231), we get a palindrome (2641302031462).

The spelling of 1320001031231 in words is "one trillion, three hundred twenty billion, one million, thirty-one thousand, two hundred thirty-one".