1312422231 has 32 divisors (see below), whose sum is σ = 1874073600. Its totient is φ = 815149440.

The previous prime is 1312422229. The next prime is 1312422269. The reversal of 1312422231 is 1322242131.

It is not a de Polignac number, because 1312422231 - 2¹ = 1312422229 is a prime.

It is a super-3 number, since 3×1312422231³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1312422198 and 1312422207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312422211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1582725 + ... + 1583553.

It is an arithmetic number, because the mean of its divisors is an integer number (58564800).

Almost surely, 2^1312422231 is an apocalyptic number.

1312422231 is a deficient number, since it is larger than the sum of its proper divisors (561651369).

1312422231 is a wasteful number, since it uses less digits than its factorization.

1312422231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479.

The product of its digits is 576, while the sum is 21.

The square root of 1312422231 is about 36227.3685354043. The cubic root of 1312422231 is about 1094.8581597306.

Adding to 1312422231 its reverse (1322242131), we get a palindrome (2634664362).

The spelling of 1312422231 in words is "one billion, three hundred twelve million, four hundred twenty-two thousand, two hundred thirty-one".