1125624021001 has 8 divisors (see below), whose sum is σ = 1141553315840. Its totient is φ = 1109708504352.

The previous prime is 1125624020981. The next prime is 1125624021007. The reversal of 1125624021001 is 1001204265211.

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 1125624021001 - 2³⁹ = 575868207113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125624021007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3279945 + ... + 3606838.

It is an arithmetic number, because the mean of its divisors is an integer number (142694164480).

Almost surely, 2^{1125624021001} is an apocalyptic number.

It is an amenable number.

1125624021001 is a deficient number, since it is larger than the sum of its proper divisors (15929294839).

1125624021001 is an equidigital number, since it uses as much as digits as its factorization.

1125624021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6889095.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 1125624021001 its reverse (1001204265211), we get a palindrome (2126828286212).

The spelling of 1125624021001 in words is "one trillion, one hundred twenty-five billion, six hundred twenty-four million, twenty-one thousand, one".