1201312031331 has 8 divisors (see below), whose sum is σ = 1614361575424. Its totient is φ = 794568587400.

The previous prime is 1201312031329. The next prime is 1201312031407. The reversal of 1201312031331 is 1331302131021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201312031331 - 2¹ = 1201312031329 is a prime.

It is a super-2 number, since 2×1201312031331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201312031298 and 1201312031307.

It is not an unprimeable number, because it can be changed into a prime (1201312038331) 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, 1576524595 + ... + 1576525356.

It is an arithmetic number, because the mean of its divisors is an integer number (201795196928).

Almost surely, 2^{1201312031331} is an apocalyptic number.

1201312031331 is a deficient number, since it is larger than the sum of its proper divisors (413049544093).

1201312031331 is a wasteful number, since it uses less digits than its factorization.

1201312031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153050081.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1201312031331 its reverse (1331302131021), we get a palindrome (2532614162352).

The spelling of 1201312031331 in words is "one trillion, two hundred one billion, three hundred twelve million, thirty-one thousand, three hundred thirty-one".