1201125043 has 8 divisors (see below), whose sum is σ = 1247451840. Its totient is φ = 1155528000.

The previous prime is 1201125041. The next prime is 1201125049. The reversal of 1201125043 is 3405211021.

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 1201125043 - 2¹ = 1201125041 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 1201125043.

It is not an unprimeable number, because it can be changed into a prime (1201125041) by changing a digit.

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, 179083 + ... + 185668.

It is an arithmetic number, because the mean of its divisors is an integer number (155931480).

Almost surely, 2^1201125043 is an apocalyptic number.

1201125043 is a deficient number, since it is larger than the sum of its proper divisors (46326797).

1201125043 is an equidigital number, since it uses as much as digits as its factorization.

1201125043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364877.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1201125043 is about 34657.2509440665. The cubic root of 1201125043 is about 1062.9905589492.

Adding to 1201125043 its reverse (3405211021), we get a palindrome (4606336064).

The spelling of 1201125043 in words is "one billion, two hundred one million, one hundred twenty-five thousand, forty-three".