1312313201331 has 32 divisors (see below), whose sum is σ = 1913305190400. Its totient is φ = 793474000800.

The previous prime is 1312313201323. The next prime is 1312313201371. The reversal of 1312313201331 is 1331023132131.

It is not a de Polignac number, because 1312313201331 - 2³ = 1312313201323 is a prime.

It is a super-2 number, since 2×1312313201331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312313201371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30083346 + ... + 30126936.

It is an arithmetic number, because the mean of its divisors is an integer number (59790787200).

Almost surely, 2^{1312313201331} is an apocalyptic number.

1312313201331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1312313201331 is a deficient number, since it is larger than the sum of its proper divisors (600991989069).

1312313201331 is a wasteful number, since it uses less digits than its factorization.

1312313201331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45727.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1312313201331 its reverse (1331023132131), we get a palindrome (2643336333462).

The spelling of 1312313201331 in words is "one trillion, three hundred twelve billion, three hundred thirteen million, two hundred one thousand, three hundred thirty-one".