3124250125561 has 8 divisors (see below), whose sum is σ = 3128988458880. Its totient is φ = 3119515362912.

The previous prime is 3124250125541. The next prime is 3124250125631. The reversal of 3124250125561 is 1655210524213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3124250125561 - 2⁷ = 3124250125433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3124250125561.

It is not an unprimeable number, because it can be changed into a prime (3124250125501) 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, 861220 + ... + 2643898.

It is an arithmetic number, because the mean of its divisors is an integer number (391123557360).

Almost surely, 2^{3124250125561} is an apocalyptic number.

It is an amenable number.

3124250125561 is a deficient number, since it is larger than the sum of its proper divisors (4738333319).

3124250125561 is a wasteful number, since it uses less digits than its factorization.

3124250125561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785335.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 3124250125561 its reverse (1655210524213), we get a palindrome (4779460649774).

The spelling of 3124250125561 in words is "three trillion, one hundred twenty-four billion, two hundred fifty million, one hundred twenty-five thousand, five hundred sixty-one".