1313121231234 has 24 divisors (see below), whose sum is σ = 2851886222640. Its totient is φ = 436662427608.

The previous prime is 1313121231179. The next prime is 1313121231241. The reversal of 1313121231234 is 4321321213131.

1313121231234 is a `hidden beast` number, since 1 + 3 + 1 + 312 + 1 + 2 + 312 + 34 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1313121231198 and 1313121231207.

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, 87046372 + ... + 87061455.

It is an arithmetic number, because the mean of its divisors is an integer number (118828592610).

Almost surely, 2^{1313121231234} is an apocalyptic number.

1313121231234 is an abundant number, since it is smaller than the sum of its proper divisors (1538764991406).

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

1313121231234 is a wasteful number, since it uses less digits than its factorization.

1313121231234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174108254 (or 174108251 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 1313121231234 its reverse (4321321213131), we get a palindrome (5634442444365).

The spelling of 1313121231234 in words is "one trillion, three hundred thirteen billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred thirty-four".