1312034421 has 16 divisors (see below), whose sum is σ = 1835422208. Its totient is φ = 832593600.

The previous prime is 1312034419. The next prime is 1312034431. The reversal of 1312034421 is 1244302131.

It is not a de Polignac number, because 1312034421 - 2¹ = 1312034419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312034411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109966 + ... + 121311.

It is an arithmetic number, because the mean of its divisors is an integer number (114713888).

Almost surely, 2^1312034421 is an apocalyptic number.

It is an amenable number.

1312034421 is a deficient number, since it is larger than the sum of its proper divisors (523387787).

1312034421 is a wasteful number, since it uses less digits than its factorization.

1312034421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231372.

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

The square root of 1312034421 is about 36222.0156948782. The cubic root of 1312034421 is about 1094.7503085728.

Adding to 1312034421 its reverse (1244302131), we get a palindrome (2556336552).

The spelling of 1312034421 in words is "one billion, three hundred twelve million, thirty-four thousand, four hundred twenty-one".