1512120426443 has 16 divisors (see below), whose sum is σ = 1754247598560. Its totient is φ = 1288143091200.

The previous prime is 1512120426437. The next prime is 1512120426461. The reversal of 1512120426443 is 3446240212151.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1512120426443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1512120426043) 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, 17612648 + ... + 17698293.

It is an arithmetic number, because the mean of its divisors is an integer number (109640474910).

Almost surely, 2^{1512120426443} is an apocalyptic number.

1512120426443 is a deficient number, since it is larger than the sum of its proper divisors (242127172117).

1512120426443 is a wasteful number, since it uses less digits than its factorization.

1512120426443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35311198.

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 1512120426443 its reverse (3446240212151), we get a palindrome (4958360638594).

The spelling of 1512120426443 in words is "one trillion, five hundred twelve billion, one hundred twenty million, four hundred twenty-six thousand, four hundred forty-three".