1312040022 has 32 divisors (see below), whose sum is σ = 2771260800. Its totient is φ = 412967808.

The previous prime is 1312040021. The next prime is 1312040039. The reversal of 1312040022 is 2200402131.

It is a junction number, because it is equal to n+sod(n) for n = 1312039983 and 1312040010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312040021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16254 + ... + 53742.

It is an arithmetic number, because the mean of its divisors is an integer number (86601900).

Almost surely, 2^1312040022 is an apocalyptic number.

1312040022 is an abundant number, since it is smaller than the sum of its proper divisors (1459220778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312040022 is a wasteful number, since it uses less digits than its factorization.

1312040022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37820.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1312040022 is about 36222.0930096537. The cubic root of 1312040022 is about 1094.7518663795.

Adding to 1312040022 its reverse (2200402131), we get a palindrome (3512442153).

The spelling of 1312040022 in words is "one billion, three hundred twelve million, forty thousand, twenty-two".