3123155542044 has 24 divisors (see below), whose sum is σ = 7670908349440. Its totient is φ = 986259644784.

The previous prime is 3123155542037. The next prime is 3123155542057. The reversal of 3123155542044 is 4402455513213.

It is a junction number, because it is equal to n+sod(n) for n = 3123155541993 and 3123155542011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6849025084 + ... + 6849025539.

Almost surely, 2^{3123155542044} is an apocalyptic number.

It is an amenable number.

3123155542044 is an abundant number, since it is smaller than the sum of its proper divisors (4547752807396).

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

3123155542044 is a wasteful number, since it uses less digits than its factorization.

3123155542044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13698050649 (or 13698050647 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 3123155542044 in words is "three trillion, one hundred twenty-three billion, one hundred fifty-five million, five hundred forty-two thousand, forty-four".