3121253045443 has 16 divisors (see below), whose sum is σ = 3363554599776. Its totient is φ = 2879267074560.

The previous prime is 3121253045437. The next prime is 3121253045467. The reversal of 3121253045443 is 3445403521213.

It is a cyclic number.

It is not a de Polignac number, because 3121253045443 - 2²⁹ = 3120716174531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121253045483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292602996 + ... + 292613662.

It is an arithmetic number, because the mean of its divisors is an integer number (210222162486).

Almost surely, 2^{3121253045443} is an apocalyptic number.

3121253045443 is a deficient number, since it is larger than the sum of its proper divisors (242301554333).

3121253045443 is a wasteful number, since it uses less digits than its factorization.

3121253045443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23334.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 3121253045443 its reverse (3445403521213), we get a palindrome (6566656566656).

The spelling of 3121253045443 in words is "three trillion, one hundred twenty-one billion, two hundred fifty-three million, forty-five thousand, four hundred forty-three".