1121150251 has 4 divisors (see below), whose sum is σ = 1207392592. Its totient is φ = 1034907912.

The previous prime is 1121150243. The next prime is 1121150257. The reversal of 1121150251 is 1520511211.

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 1121150251 - 2³ = 1121150243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121150257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43121151 + ... + 43121176.

It is an arithmetic number, because the mean of its divisors is an integer number (301848148).

Almost surely, 2^1121150251 is an apocalyptic number.

1121150251 is a deficient number, since it is larger than the sum of its proper divisors (86242341).

1121150251 is an equidigital number, since it uses as much as digits as its factorization.

1121150251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86242340.

The product of its (nonzero) digits is 100, while the sum is 19.

The square root of 1121150251 is about 33483.5818125839. The cubic root of 1121150251 is about 1038.8542148961.

Adding to 1121150251 its reverse (1520511211), we get a palindrome (2641661462).

The spelling of 1121150251 in words is "one billion, one hundred twenty-one million, one hundred fifty thousand, two hundred fifty-one".