1312305434242 has 16 divisors (see below), whose sum is σ = 2153260156032. Its totient is φ = 594877119120.

The previous prime is 1312305434213. The next prime is 1312305434249. The reversal of 1312305434242 is 2424345032131.

It is a super-2 number, since 2×1312305434242² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312305434198 and 1312305434207.

It is not an unprimeable number, because it can be changed into a prime (1312305434249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81259293 + ... + 81275440.

It is an arithmetic number, because the mean of its divisors is an integer number (134578759752).

Almost surely, 2^{1312305434242} is an apocalyptic number.

1312305434242 is a deficient number, since it is larger than the sum of its proper divisors (840954721790).

1312305434242 is a wasteful number, since it uses less digits than its factorization.

1312305434242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162535113.

The product of its (nonzero) digits is 69120, while the sum is 34.

The spelling of 1312305434242 in words is "one trillion, three hundred twelve billion, three hundred five million, four hundred thirty-four thousand, two hundred forty-two".