1125203020151 has 4 divisors (see below), whose sum is σ = 1285946308752. Its totient is φ = 964459731552.

The previous prime is 1125203020079. The next prime is 1125203020157. The reversal of 1125203020151 is 1510203025211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1125203020151 - 2²² = 1125198825847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125203020157) 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 3 ways as a sum of consecutive naturals, for example, 80371644290 + ... + 80371644303.

It is an arithmetic number, because the mean of its divisors is an integer number (321486577188).

Almost surely, 2^{1125203020151} is an apocalyptic number.

1125203020151 is a deficient number, since it is larger than the sum of its proper divisors (160743288601).

1125203020151 is an equidigital number, since it uses as much as digits as its factorization.

1125203020151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160743288600.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 1125203020151 its reverse (1510203025211), we get a palindrome (2635406045362).

The spelling of 1125203020151 in words is "one trillion, one hundred twenty-five billion, two hundred three million, twenty thousand, one hundred fifty-one".