1312012234 has 24 divisors (see below), whose sum is σ = 2142312192. Its totient is φ = 602344080.

The previous prime is 1312012201. The next prime is 1312012241. The reversal of 1312012234 is 4322102131.

It is a happy number.

It is a super-2 number, since 2×1312012234² = 3442752204331341512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54397 + ... + 74719.

It is an arithmetic number, because the mean of its divisors is an integer number (89263008).

Almost surely, 2^1312012234 is an apocalyptic number.

1312012234 is a deficient number, since it is larger than the sum of its proper divisors (830299958).

1312012234 is a wasteful number, since it uses less digits than its factorization.

1312012234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20542 (or 20529 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1312012234 is about 36221.7094295672. The cubic root of 1312012234 is about 1094.7441376570.

Adding to 1312012234 its reverse (4322102131), we get a palindrome (5634114365).

The spelling of 1312012234 in words is "one billion, three hundred twelve million, twelve thousand, two hundred thirty-four".