1312213134 has 16 divisors (see below), whose sum is σ = 2627330688. Its totient is φ = 436920312.

The previous prime is 1312213121. The next prime is 1312213193. The reversal of 1312213134 is 4313122131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312213134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115122 + ... + 126005.

It is an arithmetic number, because the mean of its divisors is an integer number (164208168).

Almost surely, 2^1312213134 is an apocalyptic number.

1312213134 is an abundant number, since it is smaller than the sum of its proper divisors (1315117554).

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

1312213134 is a wasteful number, since it uses less digits than its factorization.

1312213134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242039.

The product of its digits is 432, while the sum is 21.

The square root of 1312213134 is about 36224.4825221838. The cubic root of 1312213134 is about 1094.8000118495.

Adding to 1312213134 its reverse (4313122131), we get a palindrome (5625335265).

The spelling of 1312213134 in words is "one billion, three hundred twelve million, two hundred thirteen thousand, one hundred thirty-four".