1121025151 has 4 divisors (see below), whose sum is σ = 1126715832. Its totient is φ = 1115334472.

The previous prime is 1121025119. The next prime is 1121025187. The reversal of 1121025151 is 1515201211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1515201211 = 17 ⋅89129483.

It is a cyclic number.

It is not a de Polignac number, because 1121025151 - 2⁵ = 1121025119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121025551) 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, 2845045 + ... + 2845438.

It is an arithmetic number, because the mean of its divisors is an integer number (281678958).

Almost surely, 2^1121025151 is an apocalyptic number.

1121025151 is a deficient number, since it is larger than the sum of its proper divisors (5690681).

1121025151 is an equidigital number, since it uses as much as digits as its factorization.

1121025151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5690680.

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

The square root of 1121025151 is about 33481.7136807542. The cubic root of 1121025151 is about 1038.8155743731.

Adding to 1121025151 its reverse (1515201211), we get a palindrome (2636226362).

The spelling of 1121025151 in words is "one billion, one hundred twenty-one million, twenty-five thousand, one hundred fifty-one".